"It's hard, especially when it's not an analysis of the whole situation," Casemiro told Sky Sports. "At the start of the season, I got the trophy of best player of the month, elected by the fans here.
"Right after that I picked up an injury, a big injury. Came back, then the injury returned, now playing as a centre-back. It is hard - this is a wider analysis, I'm giving you more ample analysis.
"Injured players. I think never at any point of the season the manager had like 25 senior players available. So not only for me, for the players, but also for the manager it's very challenging. For the club it's very challenging.
"But criticism is a part of football. And I'm always very calm, especially with the criticism. When it's constructive criticism, it's always welcomed. Especially in football, when you've been playing high level for 10 years and you drop your level a little, the criticism is going to come, criticism is always going to come."