Celtic have completed the signing of highly-rated defender Josh Thompson from Stockport.
The 18-year-old is regarded as one of the brightest young prospects in the English game after coming through the ranks at Edgeley Park.
A number of clubs have been monitoring his progress over the past 12 months and he spent time training with Manchester United last season.
Tony Mowbray also invited Thompson to West Brom for a trial and the manager has maintained his interest since taking charge of Celtic.
The 6ft 4in centre-back has now followed Mowbray to Parkhead and goes straight into Celtic's first-team squad.
"We are delighted to welcome Josh to Celtic Football Club," Mowbray told his club's official website.
"We see him as a young player with great potential and we look forward to working with him as we aim to make the most of this potential in the future."
Thompson is one of three Stockport teenagers to be joining Celtic, with Curtis Jones, 17, and Michael Ordish, 16, also moving to Glasgow.
Mowbray added: "Curtis and Michael are young players with a lot of potential and they will be valuable additions to our youth setup."