David Luiz's future at Chelsea is very much up in the air right now - and it could all be because of former teammate Diego Costa.
Following last week's 3-0 defeat to Roma in the Champions League and subsequent bust up with Antonio Conte in training, Luiz was dropped for Sunday's game against Manchester United.
Cameras caught the Brazilian looking rather glum in the stands having not even made the bench, while Andreas Christensen took his place in the starting XI.
Various reports have since emerged detailing Luiz how reacted to being dropped, with the Times saying he feels like he's been unfairly singled out.
Luiz wasn't the only one who underperformed against Roma, yet he was banished from training last Friday and told to train with Chelsea's youngsters on Saturday.
Worse still, the 30-year-old centre-back was made to be a ball-boy during an 11 vs 11 training game ahead of the United clash. How humiliating.
Conte said on Sunday that he doesn't know whether Luiz has a future at Stamford Bridge and according to the Times, Costa could be the cause of him being dropped and frozen out.
Costa, who will rejoin Atletico Madrid permanently in January, clashed with Conte a lot last season and was told in May he was surplus to requirements at Chelsea.
He's now out of the picture, but Luiz regularly stepped in to defend his close friend and acted as a peacemaker, which the centre-back thinks Conte is now punishing him for.
You have to feel sorry for Luiz if that's the case. He was only trying to help Costa, but Conte clearly felt disrespected and is now taking it out on the Brazilian.
The next few months will be very interesting for Luiz where his future at Chelsea is concerned, although Conte did insist that everything can still change for him.
He said after the United win: “Maybe in the future I can decide a different way or continue in this way. That's normal.
"I must take the best decision for the club, not for a single player. It's only a tactical decision. It's normal. This can happen to every one of my players, if I see they are not in good form. It's normal.
"I repeat: I have to put my face to every situation and then sometimes to make important decisions.
"Today I did this and I think Christensen played a massive game. I was very happy for this. But it can change, it can change."
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