Coleman told Sky Sports News: “Antti’s (Niemi) our number one goalkeeper, he’s had dreadful luck this year with injuries.
“Am I looking for another goalkeeper? Of course because Lastuvka will be going back so I’ll be looking for another goalkeeper.
“Whether that’s a number one or number two or number three remains to be seen.
“Antti’s been the number one since he’s been here, he’s done a tremendous job for us, it’s just unfortunate this season he’s missed too many games for our liking because of injury.
“That’s not his fault, that’s the way football is.”