Francesco Totti could be a doubt for Roma's home fixture against Bologna at the Olympic Stadium this Sunday after suffering an ankle knock in training.
Roma said on their website www.asroma.it Thursday that Totti, who inspired his side to a 3-1 away win over Inter Milan two weeks ago, "withdrew from training early after bruising his ankle".
Although Zdenek Zeman's side are not considered as title contenders in Serie A, their display against Inter at the San Siro suggested they could be one of the surprise packages this season.
Argentine-born Italian Pablo Osvaldo has scored twice in two games so far and scored both goals in Italy's 2-2 draw against Bulgaria in a recent World Cup qualifier.
After two league games the Giallorossi sit fifth on four points having drawn at home to Catania on the opening day of the season.
Only four teams -- champions Juventus, Napoli, Lazio and Sampdoria -- have won both of the first two games so far.