Mason Mount has issued a rallying cry to his Chelsea team-mates, saying if any side can overturn a two-goal deficit at Real Madrid, it is the Blues.
But Mount admitted every game until the end of the season is now a "final" as Thomas Tuchel warned his players their season is in danger of unravelling.
A stunning Karim Benzema hat-trick earned Real a 3-1 win at Stamford Bridge in last night's Champions League quarter-final first leg and condemned the Blues to back-to-back home defeats following the 4-1 loss to Brentford on Saturday.
Tuchel afterwards declared his side's hopes in the tie over and warned they would lose to Southampton and be "hammered" in next Tuesday's return leg at the Bernabeu if performances do not pick up.
Mount struck a more optimistic note but conceded Chelsea have a "massive mountain to climb" next week, even with away goals no longer a factor in the competition.
"We know how tough it's going to be at their place and we need to regroup," Mount said. "It starts today, getting together as a group and then attacking every single game with 100 per cent until the end of the season because every game is a final now.
"In the League, in the Champions League, FA Cup, any game we play. We've got a massive mountain to climb next week but we're Chelsea. If there's any team that can do it, it's us. We'll give it everything. We've got that hunger and desire to really accomplish something."
Chelsea, who are five points clear of chasing rivals Tottenham and Arsenal in the League, and face Crystal Palace in the FA Cup semi-finals next weekend, have found their football overshadowed by the ongoing bidding process to buy the club from sanctioned oligarch Roman Abramovich.
Todd Boehly, the US businessman whose consortium is among the shortlisted bidders, was at Stamford Bridge last night, and two uncharacteristically sloppy home defeats have led to suggestions that the uncertain situation is finally affecting Tuchel and his players.
Mount said: "Mentally we were ready for the game but when you're playing top opposition these things can happen. Maybe it's something we can look it, conceding goals very quickly, because it's very difficult to get back into the game, it kills it.
“We managed to get one back and then obviously we conceded again. There's stuff to look at and focus on but this is football and at the top level little things can punish you.
"We're a group that really sticks together and we're going to have to do that massively, from now until the end of the season. We have to stick together, be a family, attack every game. That's what we have left."
Benzema scored two sublime headers in four first-half minutes to put Real in control but Kai Havertz hit back five minutes before the interval.
Tuchel introduced Hakim Ziyech and Mateo Kovacic at half-time but within a minute of the restart Benzema pounced on a terrible Edouard Mendy error to make it consecutive trebles in the competition following his match-winning display at Paris Saint-German in the last-16.
Asked if the tie was still alive, Tuchel said: “No, not at the moment. We have to find out level back. If we keep playing like this we will lose at Southampton and then we will get hammered at Bernabeu.”
