Celtic defender Moritz Jenz is still making his way through concussion protocols after being forced off against Ross County, Ange Postecoglou has revealed.

The centre-back was involved in a clash of heads against the Staggies and, although he tried to play on initially, was taken off before half-time.

He travelled with the squad to take part in the Sydney Super Cup but was not in the matchday squad for the 2-1 defeat to Sydney FC on Thursday.

Asked about Jenz's welfare post-match, Postecoglou said: "We are going through the concussion protocols with him now and he is passing all the tests.

"We will see if he is available for Sunday and all being well he will be."

Celtic went down 2-1 to the hosts in the Super Cup opener, with Kyogo Furuhashi's deflected effort cancelled out by Robert Mak and Max Burgess.

Postecoglou had another head injury worry after the game with Stephen Welsh forced off.

Asked for an update on the Scot, Postecoglou said: "I don't know mate he is getting his head stiched up and that was our main concern."

The Hoops boss was decidedly unimpressed with his side's performance in the game, saying they were "miles off the levels" they should have been.

He added: "It was a very good game and there was a lot of goalmouth action but we were nowhere near it today we were well off it. 

"We didn't start the game well and credit Sydney I thought they were good and they were sharp and started the game better. 

"In the second half we improved a little bit but we were nowhere near the levels we needed to be and Sydney deserved to win."

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