AC Milan vice-president Adriano Galliani hopes Barcelona's "monster" has a night off as the Rossoneri bid to protect their two-goal Champions League lead at a hostile Nou Camp.
Lionel Messi might have scored 40 league goals this season but the Argentinian forward has been a little more subdued in Europe, registering only five times and, more importantly, failing to notch a vital away goal at the San Siro in February.
But Galliani knows the three-time Ballon d'Or winner will be the spearhead of any Barca comeback in the last-16 second-leg clash, while ruing the absence of Milan's own talismanic forward Giampaolo Pazzini.
He told acmilan.com: "We can't go into the game thinking we'll be fine just because we've got a two-goal advantage.
"We are going up against the strongest team in the world who have a monster like Leo Messi who scores all the time. Let's hope he takes it easy on Tuesday night.
"One thing is certain - it will be another great challenge, an infinitely difficult ch...