As announced on United’s official website, the Blades have signed Burke from Premier League rivals West Bromwich Albion.
As part of the deal, striker Callum Robinson has moved to the Baggies, who will play in the top flight of English football this season after winning automatic promotion from the Championship at the end of the 2019-20 campaign.
Burke has signed a three-year contract with the Blades, and manager Wilder is pleased to have secured the services of the 23-year-old former Nottingham Forest winger.
Wilder told United’s offical website: “We needed a touch of pace and Oli certainly gives us that. We’ve been working on it for a few weeks and obviously we wish Callum (Robinson) all the best.
“It’s a move that suits all parties and we are delighted to have Oli in the building. He’s had a couple of big moves in the past that haven’t gone as he’d have hoped, but it’s down to us now to give him a kick-start and he’s got all the attributes we want and need.
“When you put it on paper at the end of the window and take a sigh, it’s been an outstanding summer for us, we will 100% be stronger than when we stepped through the door into the Premier League and that’s how it has to be.”