Many happy returns: Footballers who re-signed for old clubs

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Arsenal's decision to re-sign Sol Campbell has raised a few eyebrows.

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While the defender helped the Gunners to numerous trophies during his previous stint, many critics feel that at the age of 35 he's well past his best and can only ruin his reputation (and possibly Arsenal's credibility) by returning.

There's an old adage that says you should never go back - but is that always true in the world of football? Here's a few who returned - with varying success.