The German coach singled out the performance of the English starlet as his side dropped points in the weekend's encounter with Southampton.

Chelsea manager Thomas Tuchel has reacted to concerns that emerged after substituting off Callum Hudson-Odoi in the 76th minute of the clash with Southampton despite the winger only coming on at the beginning of the second half. The German coach revealed the reason for his decision, citing that the player did do as expected of him as his head was not in the game.

In Saturday afternoon's encounter, Chelsea were made to fightback for a point despite having been the dominant side for the most part of the game. Against the run of play, the Blues were put on the backfoot with Takumi Minamino scoring the opener for Southampton. After the half-time break, Mason Mount restored parity for the visitors, with a spot-kick. Prior to that, Callum Hudson-Odoi was brought on to replace Tammy Abraham at half time.

However, after starring for 31 minutes, the 20-year-old attacker was hauled off to make way for the introduction of Hakim Ziyech. The decision came as surprising considering how good the player had been performing since Tuchel took over the reins of the club from Frank Lampard. Following the conclusion of the encounter at the St Mary's, the former Paris Saint-Germain boss signalled out the former Chelsea academy star's attitude as what motivated the decision for his substitution.

Talking to BT Sport, he said: "I was not happy with his attitude, energy and counter-pressing. Maybe it is even unfair, but it was my feeling.

"I took him off and we demand 100%, I feel he is not in the right shape to help us. It was a hard decision but tomorrow it is forgotten and he has all possibilities to start against Atletico Madrid [in the Champions League on Tuesday].

"Everyone has to understand that I take decisions to win games and there is no problem that he makes mistakes and has a bad game, but we can't lack energy even 10% or 5%.

"He knows what I demand from him and when he doesn't reach this level, it's a hard decision."