CUP TIES are must-win matches - but they also offer managers the chance to rotate their squads.

With a trip to Recreation Park to face third-tier Alloa Athletic on the horizon, how much will Ange Postecoglou change his team?

Will there be wholesale amendments with some lesser-spotted characters like Giorgos Giakoumakis in from the start? And what impact does the artificial surface have on selection?

Meanwhile, Celtic officially bolstered their ranks once again by confirming the signing of Matt O'Riley from MK Dons. Can he make an instant impact? 

Sean Martin and Alison McConnell discuss...