The Brazil captain starred for the Red Devils during the 2022-23 campaign following a big-money move from Real Madrid, but he has found it difficult to impress this term.
Casemiro has remained a key player for Erik ten Hag's team this season despite some injury issues, making 29 appearances in all competitions, scoring five goals and registering three assists in the process.
The 32-year-old has been used in central defence of late due to the team's injury problems in that area of the field, and he had a difficult night against Crystal Palace on Monday.
Man United were beaten 4-0 by the Eagles at Selhurst Park, with the result keeping the 20-time English champions down in eighth position in the Premier League table.
Man United 'looking to sell Casemiro this summer'Ten Hag refused to criticise Casemiro for his disappointing display against Palace, with the Dutchman insisting that the entire team were to blame for the poor result.
«As you say, you can't put this to one player, it's a team performance,» Ten Hag told reporters. «The throw-in when we concede the first goal, that shouldn't happen, that's the team because we don't follow the rules, we don't adapt to a slightly different situation to organise, to keep control of that situation.
'Five players over the ball and they have a throw-in, it's not possible. There are five players there and that is a goal that shouldn't happen because we really give clear instructions of how we should defend this.
»They didn't bring it on the pitch and we got hammered. But, it was what they showed but also, the left
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