Rossoneri aim to avoid slip-up

The hosts have virtually assured their top-flight status for next season with a positive run, so Allegri's side will have their work cut out for them as they chase the Scudetto.Siena's recent positive form has seen them move up to 10th in the standings and coach Giuseppe Sannino will be hoping playmaker Franco Brienza and forward Mattia Destro can both light up the stage once again this week, as they have been pivotal to the Robur's cause in recent matches.However, he may have to turn to veteran Erjon Bogdan as Destro's partner, as Emanuele Calaio has been ruled out for the rest of the season and Pablo Gonzalez is also injured. Defender Andrea Rossi is suspended, but left-back Cristiano Del Grosso should re-enter the fray after missing the 1-1 draw with Bologna in midweek.AC Milan will welcome back centre-back Thiago Silva, a figure who could prove key in the final stretch of the season, from a muscle problem after a one-month lay off. This should allow aging Alessandro Nesta to rest after he has featured constantly in the Brazilian's absence with Mario Yepes taking the Italian's place.Striker Alexandre Pato and combative midfielder Massimo Ambrosini are on the sidelines, but Kevin-Prince Boateng, who scored the winner versus Genoa on Wednesday, should start behind Zlatan Ibrahimovic and one of Robinho or Antonio Cassano.