Casemiro has hit back at the "disrespectful" critics over comments made about his recent Manchester United performances.

The Red Devils have come under pressure for a poor run of form in recent weeks, with Casemiro one of the players singled out, in particular for his performance in the 4-0 defeat at Crystal Palace.

Casemiro enjoyed a successful first campaign with United, finishing third and lifting the EFL Cup, but the club are currently in danger of suffering their lowest-ever Premier League finish in eighth place.

"I was considered one of the best signings of the Premier League last season, and now I'm not worth anything anymore?" Casemiro told Sky Sports.

"The criticism is disrespectful. So, when it's lacking respect, then it's worrying, and I don't have to respect that either."

Casemiro was also recently left out of Dorival Junior's Brazil squad for this year's Copa America.

United finish their Premier League season away at Brighton on Sunday before facing Manchester City in the FA Cup final on May 25.