United made hard work against a side that they could have won easily against, it took the Blades 30 minutes to take the lead but it wasn't deserved. North End could have been 3 or 4-0 up by then but brilliant saves from Gerrard stopped that.
Brown penalty gave United the lead after keeper Gould brought down Lester in the box, McCall gave the home side a 2-0 lead in the second half.
Warnock told sufc.co.uk: "We were really in turmoil numbers-wise, so it makes the performance and result even better."
He then went on to give a great tribute to veteran Stuart McCall; "He's quite a remarkable player," added Warnock.
"I wouldn't back against him playing in a couple of years time let alone next year. He's a great ambassador for Sheffield United."