The former Milan boss is anticipating a tight
encounter and pointed to the physical and organisational qualities of
Saturday's opponents
The reigning champions hold a nine-point lead over Saturday's rivals, but Allegri is insistent the Biancocelesti are a force to be reckoned with.
"It will be a very difficult game for us, Lazio are a team who can aim for third place and have some excellent players," Allegri said at a press conference.
"Lazio are a well drilled, physical outfit and will want to bounce back after suffering a defeat in their last game.
"We need to be raring to go and ready for Lazio.
"We're a little short in defence as it stands but the team's doing well. Ours is the league's best rearguard and that's a comforting stat."
Allegri then went on to discuss his side's injury problems.
"[Andrea] Pirlo and [Arturo] Vidal are available to play against Lazio. Romulo still has his groin problem, he has good days and bad days but we'll see if he'll make it for Lazio.
"[Patrice] Evra will be back training with us on Sunday, [Kwadwo] Asamoah will definitely be available for Wednesday, [Martin] Caceres after Torino, while [Luca] Marrone will be back with us after the Torino game."