"He brings a lot to the table, is carefree, has a playful wit. I'm always of the opinion that it should be based on performance - no matter if someone's 17, 18 or 25. It should also be based on character: Does he fit into the team? In that case, age doesn't matter."
Goretzka's name emerged as a target a few weeks ago, given that his contract with Bayern Munich expires at the end of the season meaning he would be available on a free transfer.