Inter Milan striker Diego Milito is poised to return for Saturday's title battle at AS Roma after missing Wednesday's 3-0 win over Livorno with a hamstring problem.
The leaders, four points above Roma and AC Milan with eight games left, also hope playmaker Wesley Sneijder recovers from a minor muscle strain while Dejan Stankovic is back from suspension.
Left-back Davide Santon has knee trouble so former Roma defender Cristian Chivu is again set to start with special headgear after fracturing his skull in January.
Roma hope captain Francesco Totti returns from a long-standing knee problem but Claudio Ranieri's side have been doing fine without him as they aim to cut the gap at the top to a point.
The Giallorossi, in disarray at the start of the season before a remarkable recovery, otherwise have a fully fit squad to choose from.
Milan, beaten 1-0 at Parma on Wednesday, must ring the changes at home to in-form Lazio on Sunday with Ronaldinho and Andrea Pirlo suspended while Alexandre Pato is still injured.
Coach Leonardo, whose side have been linked in the media with Chievo's 34-year-old defender Mario Yepes for next season, could bring strikers Klaas Jan Huntelaar and Filippo Inzaghi back into the starting lineup.
Lazio, who have won two on the bounce to go four points above the drop zone, have a slew of injuries.
Crisis club Juventus host improving Atalanta on Sunday with Christian Poulsen missing out with a leg injury sustained in Thursday's 3-1 defeat at Napoli, Juve's 11th league loss this term.
The Denmark midfielder, who is being checked over by medical staff with the World Cup in his mind, had the same injury in January and was out for several weeks. Winger Mauro Camoranesi is suspended.
Fourth-placed Palermo have striker Edinson Cavani, central defender Simon Kjaer and full-back Federico Balzaretti suspended for Saturday's home game with Bologna.
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