Chelsea boss Thomas Tuchel wants greater intensity from Ruben Loftus-Cheek.
The German boss set the 26-year-old targets in the build-up to the FA Cup semi-final against Crystal Palace earlier this month, urging him to "trust himself" and gain "confidence physically".
Loftus-Cheek went on to score the opener in the 2-0 victory against Patrick Vieira's men at Wembley, but then struggled to have an impact in the defeat by Arsenal last week and the weekend's victory at Stamford Bridge against West Ham.
Now asked how he saw Loftus-Cheek - who has made 34 appearances across all competitions for the Blues this season - after setting him the challenge, Tuchel said ahead of Thursday's match against Manchester United: "More or less the same.
"He needs to push himself to the limit. He had a bit of shy game like everybody else against Arsenal and not such a good half against Crystal Palace but stepped up in the second half in dribbling and ball recoveries and suddenly the crowd was there.
"In general he is a shy and calm person but he needs to discover the monster in him and unleash this on a regular basis. It is necessary.
"It is not enough to just be on the pitch, it might seem a good first step given his last years but we cannot let him think that is enough.
"We try every day and I think we are successful given his development. He needs to understand his potential and his physical capacity every day in training, he cannot let loose. He needs to play every match like a final."