A late try by replacement wing Andrea Pratichetti on the 79th minute secured an unlikely win and gave Treviso their first victory in this season's Pool over the Welsh region.

The Ospreys 15-all draw with the Leicester Tigers last Sunday ended the Welsh sides hopes of a Heineken Cup quarter-final place and knocked them out of the tournament for this season.

The Ospreys elimination means there is no Welsh representation in the knock-out stages of the Heineken Cup for the second time in the last three seasons and this victory will rub salt into their wounds. .

The Welsh side have now lost their last 11 away games in Europe since they recorded a victory over Italian part-timers Viadana 62-7 at Reggio nell'Emilia back in December 2009.

Wing Eli Walker, who was called up to the Wales 6 Nations squad, was a late withdrawal with a hamstring injury and was replaced by Heineken Cup debutant Ben John.

Fly-half Kristopher Burton gave the home side an early lead with a penalty before his opposite number for the Ospreys, Biggar, levelled the score with his first penalty of the game.

Biggar put the visitors ahead with his second penalty midway through the first half to make it 6-3 to the Welsh side at half-time and his drop goal stretched the Ospreys lead just after the break.

Centre Tom Issacs crossed for the Ospreys try midway through the second-half but Treviso's flanker Alessandro Zanni and replacement wing Pratichetti in the dying moments secured victory.