In July he took a leave of absence and formed Ambryx with Paul Grayson, 35, who headed business development at Aurora Biosciences, which screens huge numbers of potential drugs against disease targets.

FORBES: Breaking a Sweat

James, 22, is a raw talent with huge potential after coming to rugby late from athletics and Wales and Cardiff Blues must persevere with his development.

BBC: Fans disappointed by Wales slump

"Arsenal is a great club with huge potential and we look forward to increasing our stake and exploring ways to help support the future development of the club for the benefit of all fans and shareholders, " he said.

BBC: Foreign cash 'can boost Arsenal'