Mateo Kovacic is Thomas Tuchel's go-to man in central midfield, with the Croatian's dribbling ability a huge part of his appeal.
Zlatan Ibrahimovic had a dazzling impact before injury disrupted his Manchester United career, but he has been reborn in Italy with Milan.
Tottenham fans could see Dele Alli, Gareth Bale, Harry Kane and Son Hueng-min in the same Premier League team before too long.
Olivier Giroud scored a stunning Champions League goal in midweek and could now play a crucial role for Chelsea against Manchester United.
Pep Guardiola is relaxed about Kevin De Bruyne's contract and fitness situation at Manchester City.
Tottenham boss Jose Mourinho did not shy away from the possibility of having to beat Arsenal or Manchester United for European glory.
Jordan Henderson will not play again until April at the earliest, but Liverpool's captain can still have an influence on his team-mates.
Manchester United have scored more Premier League goals than any other team this season, but their defence is still of concern.
Mikel Arteta wants Arsenal's players to follow the example of their captain after Pierre-Emerick Aubameyang rescued their European campaign.
Defending champions Liverpool have lost six of their past nine league games, with Jamie Redknapp warning there is no quick fix.