Real Madrid coach Santiago Solari has no concerns with Marcelo, he insists.
The veteran wing-back has been barracked by Real fans and it's been claimed he's informed management he wants to move to Juventus this summer.
However, Solari says: "He is doing a phenomenal job in training and I see that, like the other players.
"If he has been unsettled by critics? He's a professional footballer, he knows how it works.
"And he knows how to use the critics just like when receiving praise."