How every Celtic and Rangers star is faring on international duty as Giorgos Giakoumakis mystery continues

There have been a quite a few players from either side of the Old Firm on international duty this break.

And some have fared a lot better than others as they look to help their country in the Nations League or simply provide a boost during World Cup warm up clashes. There have been Glasgow-based lads in every corner of the globe over the last week or so, from Aaron Mooy in Australia to a whole host of Scots who will be on their way to Poland as they ready for the Ukraine showdown on Tuesday.

But the break has left some disappointed, with the outcome of some a cause for concern as they make their way back to their club. Ange Postecoglou may have something to worry about after star frontman Giorgos Giakoumakis was sent for an MRI scan after picking up a thigh injury during duty for Greece. Maeda has also missed training after coming off at half time during Japan's victory over the USA.

Josip Juranovic will be making his way back to Parkhead full of confidence, with Croaita securing their spot in the Nations League Finals. Fellow countryman and domestic rival Borna Barisic may not be in such good spirits, however, after the Croatian media were left unhappy with his performance.

There is much to discuss, so Record Sport have given a little insight into each Old Firm player's international experience so far this break.

The Celtic midfielder was sent home by Australia boss Graham Arnold, meaning he missed his country's final World Cup warm-up again against New Zealand. Mooy played all 90 minutes for the Socceroos in the first of back to back clashes with the All Whites on Thursday, helping to secure a 1-0 victory.

But he was not there for the return tie in Auckland on Sunday, where the Aussies won 2-0. Mooy has ramped