The new Women's Super League marks the start of a new era for reigning champions Chelsea, with long-serving boss Emma Hayes having departed in summer to start a new adventure with the USA Women's team.
Last year they just about did enough to claim the title on goal difference ahead of Manchester City, while Arsenal will again hope to make it a three-horse race for the WSL title. Meanwhile Liverpool, Manchester United and Tottenham will hope to progress after further rebuilding this summer.
Crystal Palace were promoted to replace Bristol City in the top flight, while on a wider note, the league is now under the management and operation of a new organisation set up to lead women's football towards further growth and progression, with Nikki Doucet overseeing both the WSL and Championship in a new phase for the game.
Follow the live action below as West Ham United face Chelsea today in the WSL:
West Ham United LFC 0 - 5 Chelsea FC Women
West Ham United vs Chelsea
16:55Match ends, West Ham United Women 0, Chelsea Women 5.
West Ham United vs Chelsea
16:55Second Half ends, West Ham United Women 0, Chelsea Women 5.
West Ham United vs Chelsea
16:54Corner, West Ham United Women. Conceded by Erin Cuthbert.
West Ham United vs Chelsea
16:55Attempt missed. Katrina Gorry (West Ham United Women) right footed shot from outside the box is close, but misses to the right.
West Ham United vs Chelsea
16:52Foul by Maika Hamano (Chelsea Women).
West Ham United vs Chelsea
16:52Fourth official has announced 4 minutes of added time.
West Ham United vs Chelsea
16:52Attempt missed. Millie Bright (Chelsea Women) right footed shot from the left side of the six yard box is close, but misses to the left. Assisted by Maika Hamano with a cross following a corner.
West Ham United vs Chelsea
16:52Corner, Chelsea Women. Conceded by Kirsty Smith.
West Ham United vs Chelsea
16:58Attempt blocked. Lucy Bronze (Chelsea Women) right footed shot from the centre of the box is blocked. Assisted by Johanna Rytting Kaneryd.
West Ham United vs Chelsea
16:48Katrina Gorry (West Ham United Women) is shown the yellow card for a bad foul.
West Ham United vs Chelsea
16:47Oriane Jean-François (Chelsea Women) wins a free kick in the defensive half.
West Ham United vs Chelsea
16:46Own Goal by Amber Tysiak, West Ham United Women. West Ham United Women 0, Chelsea Women 5.
West Ham United vs Chelsea
16:50Attempt blocked. Millie Bright (Chelsea Women) left footed shot from a difficult angle on the left is blocked.
West Ham United vs Chelsea
16:44Corner, Chelsea Women. Conceded by Katrina Gorry.
West Ham United vs Chelsea
16:43Attempt blocked. Maika Hamano (Chelsea Women) right footed shot from the centre of the box is blocked.
West Ham United vs Chelsea
16:41Attempt blocked. Viviane Asseyi (West Ham United Women) right footed shot from the centre of the box is blocked. Assisted by Shekiera Martinez.
West Ham United vs Chelsea
16:41Substitution, West Ham United Women. Manuela Paví replaces Seraina Piubel.
West Ham United vs Chelsea
16:38Attempt missed. Johanna Rytting Kaneryd (Chelsea Women) right footed shot from the centre of the box.
West Ham United vs Chelsea
16:36Substitution, West Ham United Women. Shannon Cooke replaces Li Mengwen.
West Ham United vs Chelsea
16:33Substitution, Chelsea Women. Johanna Rytting Kaneryd replaces Mayra Ramírez.
West Ham United vs Chelsea
16:33Substitution, Chelsea Women. Ashley Lawrence replaces Niamh Charles.
West Ham United vs Chelsea
16:30Attempt saved. Riko Ueki (West Ham United Women) right footed shot from the left side of the box is saved.
West Ham United vs Chelsea
16:30Attempt missed. Niamh Charles (Chelsea Women) header from very close range is close, but misses the top right corner. Assisted by Guro Reiten with a cross following a corner.
West Ham United vs Chelsea
16:29Corner, Chelsea Women. Conceded by Amber Tysiak.
West Ham United vs Chelsea
16:29Mayra Ramírez (Chelsea Women) wins a free kick on the left wing.
West Ham United vs Chelsea
16:26Delay over. They are ready to continue.
West Ham United vs Chelsea
16:26Delay in match because of an injury Mayra Ramírez (Chelsea Women).
West Ham United vs Chelsea
16:24Substitution, Chelsea Women. Maika Hamano replaces Catarina Macário.
West Ham United vs Chelsea
16:24Substitution, Chelsea Women. Guro Reiten replaces Sandy Baltimore.
West Ham United vs Chelsea
16:24Substitution, Chelsea Women. Oriane Jean-François replaces Sjoeke Nüsken.
West Ham United vs Chelsea
16:24Foul by Mayra Ramírez (Chelsea Women).
West Ham United vs Chelsea
16:24Foul by Nathalie Björn (Chelsea Women).
West Ham United vs Chelsea
16:24Attempt saved. Mayra Ramírez (Chelsea Women) right footed shot from outside the box is saved in the bottom left corner.
West Ham United vs Chelsea
16:24Attempt missed. Sjoeke Nüsken (Chelsea Women) header from the left side of the six yard box is high and wide to the left. Assisted by Catarina Macário with a cross.
West Ham United vs Chelsea
16:24Corner, Chelsea Women. Conceded by Amber Tysiak.
West Ham United vs Chelsea
16:15Attempt missed. Anouk Denton (West Ham United Women) right footed shot from outside the box.
West Ham United vs Chelsea
16:14Corner, Chelsea Women. Conceded by Amber Tysiak.
West Ham United vs Chelsea
16:13Goal! West Ham United Women 0, Chelsea Women 4. Sandy Baltimore (Chelsea Women) left footed shot from the left side of the box to the high centre of the goal. Assisted by Niamh Charles.
West Ham United vs Chelsea
16:12Corner, Chelsea Women. Conceded by Riko Ueki.
West Ham United vs Chelsea
16:17Attempt blocked. Sjoeke Nüsken (Chelsea Women) header from the centre of the box is blocked. Assisted by Catarina Macário with a cross.
West Ham United vs Chelsea
16:10Corner, Chelsea Women. Conceded by Kirsty Smith.
West Ham United vs Chelsea
16:09Attempt missed. Sandy Baltimore (Chelsea Women) right footed shot from outside the box.
West Ham United vs Chelsea
16:09Corner, Chelsea Women. Conceded by Shelina Zadorsky.
West Ham United vs Chelsea
16:07Attempt missed. Katrina Gorry (West Ham United Women) right footed shot from outside the box is too high. Assisted by Seraina Piubel.
West Ham United vs Chelsea
16:06Second Half begins West Ham United Women 0, Chelsea Women 3.
West Ham United vs Chelsea
16:09Substitution, West Ham United Women. Shekiera Martinez replaces Oona Siren.
West Ham United vs Chelsea
15:51First Half ends, West Ham United Women 0, Chelsea Women 3.
West Ham United vs Chelsea
15:50Attempt saved. Sandy Baltimore (Chelsea Women) left footed shot from the left side of the six yard box is saved in the bottom left corner. Assisted by Mayra Ramírez.
West Ham United vs Chelsea
15:52Delay over. They are ready to continue.
West Ham United vs Chelsea
15:48Delay in match (West Ham United Women).
West Ham United vs Chelsea
15:52Delay in match (Chelsea Women).
West Ham United vs Chelsea
15:47Attempt saved. Agnes Beever-Jones (Chelsea Women) right footed shot from outside the box is saved.
West Ham United vs Chelsea
15:47Fourth official has announced 4 minutes of added time.
West Ham United vs Chelsea
15:47Sjoeke Nüsken (Chelsea Women) wins a free kick in the attacking half.
West Ham United vs Chelsea
15:45Goal! West Ham United Women 0, Chelsea Women 3. Agnes Beever-Jones (Chelsea Women) right footed shot from outside the box.
West Ham United vs Chelsea
15:45Mayra Ramírez (Chelsea Women) wins a free kick in the defensive half.
West Ham United vs Chelsea
15:44Attempt saved. Catarina Macário (Chelsea Women) right footed shot from outside the box is saved in the top left corner. Assisted by Erin Cuthbert.
West Ham United vs Chelsea
15:39Attempt missed. Seraina Piubel (West Ham United Women) left footed shot from the left side of the box misses to the right. Assisted by Anouk Denton.
West Ham United vs Chelsea
15:39Offside, Chelsea Women. Mayra Ramírez is caught offside.
West Ham United vs Chelsea
15:35Foul by Mayra Ramírez (Chelsea Women).
West Ham United vs Chelsea
15:33Offside, West Ham United Women. Seraina Piubel is caught offside.
West Ham United vs Chelsea
15:38Offside, West Ham United Women. Seraina Piubel is caught offside.
West Ham United vs Chelsea
15:33Attempt missed. Nathalie Björn (Chelsea Women) right footed shot from the centre of the box misses to the left.
West Ham United vs Chelsea
15:33Attempt blocked. Agnes Beever-Jones (Chelsea Women) header from the centre of the box is blocked.
West Ham United vs Chelsea
15:30Offside, West Ham United Women. Viviane Asseyi is caught offside.
West Ham United vs Chelsea
15:29Corner, Chelsea Women. Conceded by Katrina Gorry.
West Ham United vs Chelsea
15:29Delay over. They are ready to continue.
West Ham United vs Chelsea
15:29Delay in match because of an injury Anouk Denton (West Ham United Women).
West Ham United vs Chelsea
15:26Corner, Chelsea Women. Conceded by Kirsty Smith.
West Ham United vs Chelsea
15:26Attempt saved. Sandy Baltimore (Chelsea Women) left footed shot from the left side of the box is saved in the bottom left corner. Assisted by Lucy Bronze with a cross.
West Ham United vs Chelsea
15:22Goal! West Ham United Women 0, Chelsea Women 2. Erin Cuthbert (Chelsea Women) right footed shot from outside the box to the bottom left corner. Assisted by Nathalie Björn.
West Ham United vs Chelsea
15:22Attempt missed. Catarina Macário (Chelsea Women) right footed shot from outside the box misses to the left from a direct free kick.
West Ham United vs Chelsea
15:21Foul by Oona Siren (West Ham United Women).
West Ham United vs Chelsea
15:22Sjoeke Nüsken (Chelsea Women) wins a free kick in the attacking half.
West Ham United vs Chelsea
15:30Attempt blocked. Agnes Beever-Jones (Chelsea Women) left footed shot from the left side of the box is blocked.
West Ham United vs Chelsea
15:20Corner, Chelsea Women. Conceded by Amber Tysiak.
West Ham United vs Chelsea
15:20Delay over. They are ready to continue.
West Ham United vs Chelsea
15:18Delay in match because of an injury Kinga Szemik (West Ham United Women).
West Ham United vs Chelsea
15:17Attempt saved. Mayra Ramírez (Chelsea Women) right footed shot from the centre of the box is saved.
West Ham United vs Chelsea
15:17Corner, Chelsea Women. Conceded by Li Mengwen.
West Ham United vs Chelsea
15:14Attempt missed. Catarina Macário (Chelsea Women) right footed shot from the centre of the box is just a bit too high. Assisted by Agnes Beever-Jones.
West Ham United vs Chelsea
15:12Goal! West Ham United Women 0, Chelsea Women 1. Catarina Macário (Chelsea Women) left footed shot from the centre of the box.
West Ham United vs Chelsea
15:10Foul by Erin Cuthbert (Chelsea Women).
West Ham United vs Chelsea
15:10Katrina Gorry (West Ham United Women) wins a free kick in the defensive half.
West Ham United vs Chelsea
15:09Corner, Chelsea Women. Conceded by Shelina Zadorsky.
West Ham United vs Chelsea
15:07Corner, Chelsea Women. Conceded by Katrina Gorry.
West Ham United vs Chelsea
15:06Corner, Chelsea Women. Conceded by Katrina Gorry.
West Ham United vs Chelsea
15:18Attempt blocked. Agnes Beever-Jones (Chelsea Women) left footed shot from outside the box is blocked. Assisted by Catarina Macário.
West Ham United vs Chelsea
15:05Corner, Chelsea Women. Conceded by Amber Tysiak.
West Ham United vs Chelsea
15:03Corner, Chelsea Women. Conceded by Shelina Zadorsky.
West Ham United vs Chelsea
15:02First Half begins.
West Ham United vs Chelsea
14:30Lineups are announced and players are warming up.
West Ham United vs Chelsea
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