Former Manchester United captain Roy Keane has been impressed by Kai Havertz this season.
Keane has hailed Chelsea star Havertz for showing "a bit of arrogance".
The former Manchester United bruiser tipped his hat to Havertz, 22, ahead of the Blues' FA Cup semi-final with Crystal Palace at Wembley.
He told ITV Sport: "It looks like he's got a bit of arrogance, and he does back it up.
"But it took him a while to adapt to the English game. Again, he's a talented boy, a big presence."