Beckham will line up for the Italians as they attempt to claw back from a 3-2 deficit in the second leg.
Enlarge Grand designs: David Beckham wore his boots in training on Tuesday
It is the first time the United legend has returned to face his former side since leaving in 2003.
And judging by his boots in training on Tuesday, Beckham will be torn over the outcome of the battle for a place in the quarter-finals.
Raring to go: Beckham (centre) battles for the ball at Old Trafford
As well as having the names of his three sons - Cruz, Romeo and Brooklyn - the veteran midfielder also have both English and Italian flags stitched into the back of his adidas boots.
You can take the man out of England, but you'll never take England out of this patriotic star.
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