Not what Leipzig seems to think given he is playing regularly for them, and they are fifth in the Bundesliga.
How many minutes has he played for then since signing?
Edit: I've just found out.
He's never completed 90 mins (as far as I can see).
He's started 3, come off the bench in 4 (usually last 15 mins).
Out of possible 990 mins he's played 270 minutes.
I'm not sure 'regularly' quite fits. 'Occasionally' might be more accurate.
He's not really playing any more for them than he was for us before he left.