United were sent crashing out of the Carabao Cup last night after falling to a 3-0 home defeat to Newcastle.
Miguel Almiron and Lewis Hall gave the visitors a 2-0 first half lead, with Joe Willock sealing victory for the Magpies in the second half.
Asked after the game whether former Ajax winger Antony is the player he thought he was signing, Ten Hag said: 'That is also team, first, and the team is not playing well when we don't bring him the balls and I am also responsible for that.
'But obviously, there was also a lot of noise and that dropped his levels. He can do better but all the players can do better.
The Brazil international has endured a tough start to the season, scoring no goals or assists
Ten Hag, who managed the winger at Ajax, said 'noise' surrounding Antony has affected him
'Antony is also a fighter, he has the confidence, he is brave and I am confident he will bring the performance that he is the right player for us.'
The 23-year-old was signed for £86.3million from Ajax but has so far failed to find his feet at Old Trafford.
His manager's comments also comes after the Brazil international missed five games earlier in the season amid allegations of assault by a former girlfriend.
Gary Neville told Sky Sports that the situation was worrying for Ten Hag, highlighting that even the club's recent victories had come despite poor performances.
'At the moment it is worrying stuff for him, losing matches but the performances have been really awful,' Neville said.
'Even the ones they have won in the last few weeks. Nowhere near good enough.
'You knew if half decent teams came to Old Trafford they would be back with losses again.'
He also tweeted on X this morning: 'Last night we saw the Theatre of Dreams turn into the Theatre of Nothing. Every single United fan bored and flat.
'On the pitch the players in shock, the performances woeful and a manager struggling in front of our eyes.
'We've seen it before, we know how it ends and we've had enough.'
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