Muamba moved to England from Congo in 1994

Bolton have signed England Under-21 midfielder Fabrice Muamba from Birmingham City in a four-year deal worth over �5m.

The 20-year-old, a product of the Arsenal youth system, is manager Gary Megson's first signing of the summer.

Megson said: "Fabrice is a tough-tackling central midfielder who has had a good grounding with the Arsenal youth set-up.

"He'll be a tremendous asset to Bolton Wanderers over the coming seasons."

Muamba initially moved to St Andrews on a year-long loan from Arsenal at the start of the 2006/07 season before making the deal permanent last year.

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Muamba, who moved to England from the Democratic Republic of Congo in 1994, made his Under-21 debut with England in a friendly against Romania in August 2007 and has gone on to make a further six appearances at that level.