Florian Wirtz has been the subject of numerous snippy comments coming from Bayern Munich’s direction since snubbing their advances in favour of joining Liverpool this summer. But while the ‘war of words’ has been fairly one-sided to date, the managing director of the German national team has hit back at the Bavarians in defence of the playmaker.

The 22-year-old joined the Reds in an £116m move from Bayer Leverkusen this summer, rejecting interest from the likes of Bayern and Man City in the process. Yet he has faced intense scrutiny since the start of the season, with the playmaker yet to register a goal or an assist in the Premier League.

Following Wirtz’s slow start in England, Bayern’s former CEO and current board member Karl-Heinz Rummenigge recently took aim at his choice of transfer.

“I have...