Unlike their tonight’s counterparts Manchester United, Chelsea are not in such a lousy form, although the uncertainties regarding the club’s ownership do cause nervousness.However, what worries their gaffer Thomas Tuchel the most is Antonio Rudiger’s decision to leave the club despite several contract renewal offers.Tuchel confirms Rudiger is leaving ChelseaIn the intro to the Man Utd tie, Tuchel says “nobody likes” Rudiger’s decision to leave the club this summer as the defender closes in on a free transfer to Real Madrid.Rudiger, whose Chelsea deal expires at the end of the season, is close to agreeing to a four-year deal with Real.Rudiger rejects Chelsea, again, as his Stamford Bridge tenure seems to be reaching the dead endAsked about his compatriot’s decision to leave, Tuchel said: “I don’t think anybody likes it. He gives everybody confidence in the dressing room. He is a unique character and plays on an outstanding level. He sometimes takes it on himself since he loves responsibility.”Nobody likes this decision, but we have to accept it. Like it or not, there will be life at Chelsea after Toni. It is also the most important thing for us that it ends like it started, on the highest level.”THU: 21.45: (3.35) MAN UTD (3.40) CHELSEA (2.30)Despite United’s troublesome campaign, the Chelsea coach insists Rangnick’s squad is still packed with quality players and is looking forward to Thursday’s trip to Manchester.”I am personally very happy to face them at Old Trafford,” Tuchel said. “For me, it is one of the biggest stages.”I arrive with a strong club and team, the best way to arrive. This match will always be big for me, no matter what position or form they are in.Rangnick denies allegations of making players’ dossiers ahead of the Chelsea tie”That’s why we prepare in the best possible way. We don’t reflect so much on their situation. We focus on their last matches. We should not get confused by the lack of results. For me, the squad is full of quality.”