Former two-time winner Paolo Bettini has played down his chances of a third victory in the prestigious one-day classic Liege-Bastogne-Liege this Sunday.

The reigning world and Olympic champion will saddle up as the Quick Step team's biggest hope of winning the 261km race but the Italian could be forgiven if he winces with pain on several of the 12 punishing climbs.

Bettini is still recovering from arm and rib injuries sustained in a heavy crash at the Tour of the Basque country earlier this month, a setback which he says could have left him off a lot worse.

Despite racing the four-day Giro del Trentino in midweek, Bettini appeared hesitant over his victory chances here despite saying his condition has vastly improved.

"I'm feeling better, but I haven't exactly had the best preparation for Liege," said Bettini, the winner in 2000 and 2002.

"I've had to work really hard to get back to fitness, and to find again the morale needed for this kind of race.

"I've got good condition, although it's not excellent. Hopefully I'll be able to produce something on Sunday, but I'm not making any predictions."

Bettini, like most of the peloton, said he is hoping the warm temperatures last throughout the race.

But his hopes, like those who are not pure climbing specialists, could be hit by the new, tough climb added by organizers a few kilometers prior to the final climb at St Nicholas.

Bettini admits that compatriot Damiano Cunego, and Australian Cadel Evans — both among the race favorites — could have the edge.

"I think Damiano has what it takes to go for the win, but Cadel is in great form as well," Bettini added.

"But I wouldn't count out (Franck) Schleck and (Davide) Rebellin."