The 20-year-old is one of six frontmen at Sir Alex Ferguson's disposal at Old Trafford, having returned from a season-long loan stint at Sunderland last term.
In demand: Danny Welbeck enjoyed a successful loan spell at Sunderland
And althoughy Welbeck has hinted he is keen to break into the manager's first-team plans, Ferguson has already indicated that he might struggle to keep his entire strike-force happy.
Last season's first-choice partnership Wayne Rooney and Javier Hernandez are expected to keep Dimitar Berbatov, Michael Owen, Federico Macheda and Welbeck on the sidelines.
International star: Welbeck made his England debut against Ghana at Wembley
The Trotters are reportedly poised to pounce for Welbeck if the manager chooses to send him out on loan again after he impressed at the Stadium of Light, scoring six goals.
But Bolton could face competition for the England Under 21 man following speculation that Steve Bruce is keen to keep him with the Black Cats for another season.
Welbeck made his United bow two months short of his 18th birthday and scored on both his Premier League and FA Cup debuts, then started the 2009 Carling Cup final win over Tottenham.
But that was arguably the high point of his Old Trafford career so far and he has not featured for his parentclub for a year and a half.
Bolton boss Owen Coyle reaped the rewards of signing another youngster, Daniel Sturridge, on loan from Chelsea last season.
The 21-year-old was on target with eight goals in 12 appearances for the Premier League club and has also been linked with a return to the Reebok Stadium.
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