Ireland are tired but must dig deep to topple South Africa, says Schmidt

• Coach believes one final push can help win third Test in Port Elizabeth• Ireland without Robbie Henshaw and Jared Payne for series deciderIrish eyes are tiring after a year of rugby, but if they keep them open wide enough for 80 minutes in Port Elizabeth on Saturday, they will witness history being made. Not only have Ireland never won a series in South Africa, but no European country has achieved the feat in the professional era.The sides are level in the series at 1-1 after Ireland’s victory with 14 men in the opening international at Cape Town was wiped out in Johannesburg the following w…