Victor Lindelof and Andre Onana heaped praise on Casemiro after the midfielder scored a late match-winning goal against Nottingham Forest in the FA Cup.
Casemiro was substituted at half-time due to a head injury in the defeat to Fulham in the league last weekend, but he was deemed fit enough to play at the City Ground.
United had the chance to progress to the quarter-finals of the FA Cup against Forest, but with both sides failing to score deep into the second half, the game was set to go to extra time, until Casemiro produced a glancing header to win the game with just a minute remaining on the clock.
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United will play Liverpool at Old Trafford in the quarter-finals of the FA Cup and, after the game, Lindelof praised Casemiro when speaking to the BBC.
The defender said: "Obviously we were very happy. We knew it was going to be a tough game and it's always nice to score a late goal to go through to the next round. We're all very pleased.
"I think he's [Casemiro] very good at the timing of everything. He's a clever player and he's done that a couple of times in his career, so it was the perfect ball and the perfect execution from Casemiro.
"We have a nice couple of games coming up and we're just going to focus on one game at a time. We're pleased with the performance."
Onana conducted the post-match interview alongside Lindelof and added: "A good finish from Casemiro and it was a really important goal for us. It was an important game for us to win, we know how important it was for us, so I'm very happy for this victory. We worked hard and this is the reward.
"When you're a Manchester United player,
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