Steve Bruce has made England under-21 international Connor Wickham his latest summer signing.
The 6'3" 18-year-old - rated as one of the country's brightest talents - has moved from Ipswich Town for a fee of £8m, with the potential to rise to £12m over the course of the contract, depending on a number of factors.
Wickham, who was named the Football League's Young Player of the Year for the 2010-11 season, has signed a four-year deal on Wearside.
The player returned from international duty earlier this week after representing his country in the U21 European Championships in Denmark.
Wickham became Ipswich's youngest ever player when he made his debut for the Tractor Boys aged just 16 years and 11 days.
The striker's first full season yielded a return of six goals in 10 starts and a further 19 appearances off the bench, while he netted nine goals in 40 games last term before winning the prestigious Football League award.
He also scored the winning goal for England's under-17 side in the U17 European Championships Final last summer.
Black Cats snap up Wickham | Latest Sunderland News | Team & Transfer News | Sunderland AFC | Sunderland
Very good signing. Hopefully they can keep hold of Gyan.. Gyan-Wickham looks good on paper..