And on 20 minutes Liverpool found themselves with a penalty and Peter Crouch carried off with blood pouring from a head wound, courtesy of Hulse's boot.
Seconds earlier Kozluk grappled with Gerrard, pulling him to the ground.
After Crouch's departure with a broken nose, Fowler stepped up to drive home the penalty.
Crouch was caught by Rob Hulse's boot
Liverpool boss Rafael Benitez has confirmed that Peter Crouch broke his nose on Saturday.
The England striker was carried out of Liverpool's 4-0 victory after being accidentally kicked in the face by Blades striker Rob Hulse.
Benitez told Liverpool's website: "Crouch has a broken nose and needed stitches but it's not serious, he's OK and I spoke to him after the game."
Benitez added that keeper Jose Reina missed the game as his wife gave birth.
Crouch also suffered a cut head as Hulse's boot made contact as the Reds star stooped to head a ball.
Ironically, Liverpool had already been awarded a penalty for Rob Kozluk's foul on Steven Gerrard.
Reina's wife Orlando went into labour with their first child on Friday night and the goalkeeper was at her bedside in hospital.
...about the only Liverpool player who did not enjoy himself was Peter Crouch. He was caught in the face by Rob Hulse’s boot and was carried off with a broken nose and to have 11 stitches in a head wound.