The fact that Koen Casteels could replace Wolf in between the sticks and stabilise the defence to a certain degree speaks volumes about Wolf 's performances this season .
Koen Casteels did n't really strike most Bundesliga fans as a fantastic keeper during his time at Hoffenheim .
The fact that Koen Casteels , who did n't really strike most Bundesliga fans as a fantastic keeper during his time at Hoffenheim , could replace Wolf in between the sticks and stabilise the defence to a certain degree speaks volumes about Wolf 's performances this season .