A last-gasp winner from Dani Ceballos saw us book our place in the semi-finals of the Emirates FA Cup on Sunday.
But what did we learn from our trip to Bramall Lane? Read on to find out...
CREDIT TO KT
"He's a kid with an incredible attitude... he has a massive heart." Those are just a couple of the compliments that Mikel Arteta paid to Kieran Tierney after Sunday's win, and no wonder. The Scotland international was cramping up at the end of a big shift at Southampton but he was back to put in another proper stint at Bramall Lane.