Callum Robinson joins West Brom as Sheffield United sign Oliver Burke

However, he failed to establish himself in the West Brom team and, after loan spells at Celtic and Alaves, the 23-year-old will look to reignite his career at Bramall Lane.

"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," Blades boss Chris Wilder told the club's website.

"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 per cent be stronger than when we stepped through the door into the Premier League and that's how it has to be."

Robinson, who enjoyed an impressive loan spell at The Hawthorns in the second half of last season, has signed a five-year deal with the Baggies.

"I was fortunate enough to help Albion win promotion to the Premier League and I'm so excited to have the chance to play for this club in the Premier League," he told the club's website.

West Brom's sporting and technical director Luke Dowling believes the 25-year-old has plenty of progress still to make under manager Slaven Bilic.

"We're delighted to welcome back Callum, who really enjoyed his time at the club on loan and showed his capabilities from the moment he arrived," he said.

"We have seen his ability out wide and also feel he has the capacity to be equally effective in the central areas.

"There is a belief here that there is a lot more to come from Callum under Slaven's guidance and his development will be another important asset for the club."