Ange Postecoglou has shrugged off criticism of Giorgos Giakoumakis as he tipped the striker to "bounce back" from his Celtic penalty miss.
The Greek striker blew the opportunity to score from the spot late in the goalless draw with Livingston which would have taken the Parkhead outfit to the top of the table.
Postecoglou was quick to defend the miss after the full-time whistle, and insisted it was his call to replace Josip Juranovic on the duties from 12 yards.
The Australian has tipped the £2.5million summer recruit to get it right in Glasgow's east end ahead of the crucial Europa League clash with Ferencvaros.
Postecoglou said: "I haven't been paying too close attention (to him) to be fair but he is a striker, he is a number nine.
"You don't be number nine for Celtic and hide somewhere when a penalty is up for grabs in the last minute of the game.
"I reckon he would be disappointed if he didn't take it, I'd like to think he would be.
"That is his challenge but you come to a big club, you are the striker, you are expected to score goals, you are not expected to be protected from that.
"It was disappointing for him I guess personally but from a team perspective we are not going to hang it on him that he missed a penalty.
"It was my decision to put him up there and that's the way it is and I expect him to bounce back as he should because he is going to get more opportunities to win games for us and I assume he will want to be front and centre for that."