Ralph Hasenhuttl left counting the cost of Southampton’s cup win over Coventry

Ralph Hasenhuttl’s Southampton needed extra time to get past Coventry (Kieran Cleeves/PA)

Southampton boss Ralph Hasenhuttl was left counting the cost of his side’s extra-time FA Cup win over Coventry.

Saints needed a Stuart Armstrong wonder-strike and a 112th-minute goal from Kyle Walker-Peters to edge out the Championship Sky Blues 2-1 at St Mary’s.