Rangers are being “proactive” in seeking a new striker after Youssef Chermiti was ruled out long term, says manager Derek McInnes, who warned defensive injuries have left the club “playing with fire”.

Chermiti, 22, sustained an anterior cruciate ligament injury in Saturday’s defeat by Hibernian, shortly after McInnes confirmed a bid had been rejected for the Portugal Under-21 cap. Galatasaray have been linked with the former Everton player.

A specialist in London will be consulted, with a possible operation next week.

Chermiti is joined on the sidelines by left-back Tuur Rommens, who has been ruled out for up to eight weeks with a groin problem suffered in the same game.

McInnes, whose side will attempt to overturn a 2-1 first-leg deficit at home to Jagiellonia Bialystok in their Europa League third-round qualifier on Thursday, said of Chermiti: “Obviously, really disappointing for ourselves.

“Selfishly, he’s a big part of what we wanted to do this season and he’s obviously a talented boy.

“For Youssef himself, obviously he’s very young. It’ll be difficult for him to accept and understand what’s happened to him.

“The only saving grace from our point of view as a club is the fact it’s happened in a transfer window and we’ve got the opportunity to react to that.

“The plan was for Youssef to stay in. Obviously it was a big number that was reportedly bid for him. I don’t know exactly what the figure was. Obviously the club rejected that. It’s neither here nor there now, to be honest. It’s done.

“We are obviously looking at maybe strengthening that area of the pitch. We’re trying to be quite proactive with that and seeing what is available. Number nines are normally the most difficult ones to get.”