Liverpool have typically had quiet January transfer windows under Jurgen Klopp.
So it was a shock for a lot of supporters when the Reds splashed the cash to bring Luis Diaz in from Porto, with the deal potentially worth £49 million.
At one stage, Diaz looked set to be followed by Fulham's Fabio Carvalho, as Liverpool had agreed a fee for the youngster. Carvalho was poised to head back to the capital on loan for the remainder of the term, but the deal collapsed at the last minute.
There were also a number of loan outgoings for Liverpool, with Nathaniel Phillips joining Championship outfit Bournemouth and Neco Williams heading to Fulham.
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Vitezslav Jaros and Liam Hughes made temporary transfers to Notts County and Stalybridge Celtic on loan respectively. Morgan Boyes and Tony Gallacher also left the club after being released, with the former picked up by Livingston and the latter by St Johnstone.
After that activity, there are a number of tweaks to Liverpool's squad number list. Here is a reminder of what player will don what jersey for the remainder of the campaign:
1. Alisson Becker
3. Fabinho
4. Virgil van Dijk
5. Ibrahima Konate
6. Thiago
7. James Milner
8. Naby Keita
9. Roberto Firmino
10. Sadio Mane
11. Mohamed Salah
12. Joe Gomez
13. Adrian
14. Jordan Henderson
15. Alex Oxlade-Chamberlain
17. Curtis Jones
18. Takumi Minamino
20. Diogo Jota
21. Kostas Tsimikas
23. Luis Diaz
26. Andrew Robertson
27. Divock Origi
32. Joel Matip
55. Herbie Kane
62. Caoimhin Kelleher
63. Ben Winterbottom
65. Tom Clayton
66. Trent Alexander-Arnold
67. Harvey Elliott
70. Yasser Larouci
75. Luis Longstaff
81. Jack Bearne
89. Billy Koumetio
93. James Norris
97. Layton Stewart
99. Thomas Hill
Diaz has taken the number 23 jersey following his big-money switch. It's a shirt donned by a number of Reds favourites from a variety of different positions, including Robbie Fowler and Jamie Carragher.
The previous incumbent was Xherdan Shaqiri, who left Liverpool to join Lyon in the summer.
Boyes' number 77 shirt has now become vacant, while Gallacher had not been allocated a jersey.
