ANGE POSTECOGLOU has slammed a the "terrible" tackle on Yosuke Ideguchi which left the midfielder "pretty painful".

The Japanese Celtic star was forced off in the Scottish Cup win over Alloa after a fierce challenge from Mouhamed Niang.

The Wasps youngster, 22, cleared the ball before catching Ideguchi on the ankle. Postecoglou was forced to withdraw Ideguchi from the match and revealed he is still suffering with an injury.

The Celtic boss had suggested it was a minor knock after the match but has since suggested it's a more significant injury.

He told Celtic TV: "Not great. I think I said after the game that it didn't look too serious but I didn't really get a good look at him.

"It was a terrible tackle and one that should've been addressed by the referee on the day. He hasn't come out of it too well and he'll be missing for a little bit."

Postecoglou also insisted more should've been done after the nasty challenge which saw Niang booked by referee Don Robertson.

He added: "He's still pretty painful. Again, I know the kind of character he is so for him to stay down and have come off I knew it was significant.

"I was optimistic it wasn't anything too bad but, as everyone saw from the footage, it was a tackle that should never have happened and should've been addressed on the day."