Thomas Tuchel will be looking to build on Chelsea's London derby win at Tottenham when the Blues head to Sheffield United on Sunday.
Tuchel got the better of Jose Mourinho as Chelsea left north London with a 1-0 win on Thursday night to kickstart their Champions League qualification hopes.
Chelsea are already showing signs of Tuchel's tactical approach, with the full-backs given freedom to get forward in front of a three-man defence - but a new challenge awaits this weekend.
Chris Wilder's Blades looked assured of relegation a couple of weeks ago, but have won two of their last three Premier League games - including a stunning 2-1 victory at Manchester United - to suggest this will not be a walkover for Chelsea.
Date, kick-off time and venue: Sheffield Utd vs Chelsea is scheduled for a 7:15pm GMT kick-off on Sunday, February 7, 2021.
The match will be held behind closed doors at Bramall Lane due to coronavirus restrictions.
Chelsea will be without Thiago Silva for the trip north. The Brazilian defender came off during the first half of Thursday's 1-0 win over Tottenham with a muscle injury.
Kai Havertz and Kurt Zouma both missed the London derby victory with slight problems, but could recover to feature at Bramall Lane.
Chelsea predicted line-up (3-2-4-1): Mendy; Azpilicueta, Christensen, Rudiger; Jorginho, Kante; James, Mount, Pulisic, Alonso; Werner
Chelsea provisional squad: Mendy, Azpilicueta, Rudiger, Hudson-Odoi, Chilwell, Kante, Jorginho, Havertz, Ziyech, Giroud, Arrizabalaga, James, Zouma, Christensen, Emerson, Alonso, Kovacic, Gilmour, Pulisic, Werner, Abraham.