AC Milan chief Adriano Galliani says club are waiting on Giampaolo Pazzini scan

Giampaolo Pazzini: The Milan striker suffered an ankle injury against Genoa

AC Milan chief Adriano Galliani admits the club are unsure whether Giampaolo Pazzini will be fit to face Barcelona on Tuesday night.

The striker scored in the Rossoneri's 2-0 win over Genoa in Serie A on Friday night, but then suffered an ankle injury and could now miss the crucial UEFA Champions League last-16 second-leg clash at Camp Nou.

Galliani has revealed that results from a scan conducted on the former Fiorentina and Inter Milan star are expected on Sunday.

He told the Italian press: "I'm waiting for news on Pazzini to see if he is able to play on Tuesday in Barcelona. He will undergo a medical assessment and scans in the next 24 hours."

Head coach Massimiliano Allegri is also sweating over the fitness of defender Philippe Mexes after he was substituted at half-time at the Stadio Marassi with a muscular problem.

Milan hold a 2-0 advantage over the Catalan club thanks to first-leg goals from Kevin-Prince Boateng and Sulley Muntari at the San Siro.