Thomas Tuchel is set for his biggest test in the Premier League so far as Chelsea welcome Manchester United to Stamford Bridge.
The Blues are undefeated in their seven league matches with the German in charge, while also defeating Atletico Madrid 1-0 in the Champions League, which has revived their push for a top-four finish.
United, meanwhile, have lost just one in the Premier League since November and are Manchester City's closest challengers for the league title.
Chelsea will therefore have to be at their best and fans on social media have been discussing Tuchel's team selection for the game.
The Blues made three changes from the side that defeated Atletico 1-0 in the Spanish capital in midweek, with Ben Chilwell, N'Golo Kante and Hakim Ziyech coming into the side.
As a result, Marcos Alonso, Jorginho and Timo Werner drop out, with the trio all taking a spot on the bench.
It was the inclusion of Ziyech which attracted the most attention from supporters, with the Morocco international finding regular opportunities difficult to come by.
Ziyech's last start came in the FA Cup victory over Barnsley, while his last start in the Premier League came in the goalless draw with Wolves - Tuchel's first match in charge.
While some supporters were excited to see the summer signing back in action once again, others were concerned by his inclusion and wanted to see Werner in the side.
Ziyech has contributed one goal and three assists in the Premier League so far this season, appearing in 12 matches.
