But the Ospreys still had a mathematical chance of qualification for the knockout stages prior to kick off and they produced a tremendous display to pull off one of the most notable wins in the tournament this term and deny Toulouse even a losing bonus point.

The French giants suffered their first defeat in this season's pool stages to a young and new-look Ospreys side, with a superb try by wing Eli Walker and the boot of Dan Biggar proving the difference between the two teams.

The Ospreys made a decent fist of things in the first-half, with fly-half Biggar slotting over a penalty and a drop goal, before Toulouse found themselves down to 14 men after lock Patricio Albacete was sin-binned for stamping on Ian Gough.

The home side failed to take any real advantage of the extra man but Biggar did land his second penalty before his opposite number for Toulouse, Jean-Marc Doussain, slotted over a penalty and drop goal to make it 9-6 at half-time.

Walesand Lions prop Adam Jones made his return from injury off the bench to stabilise the retreating Ospreys scrum, before Doussain missed a simple penalty in front of the posts to level the scores.

Toulousesoon found themselves down to 14 for a second time when flanker Jean Bouilhou was shown a yellow card for a high tackle on impressive Ospreys wing Walker.

This time the Ospreys took full advantage of their extra man and a simple passing movement led to Walker crossing for a well-taken try that made it 17-6 midway through the second half.

Centre Ashley Beck could have scored a second try for the home side but he lost the ball over the Toulouse line, and the Ospreys lost prop Jones to a yellow card in the dying moments but they still managed to hold out for a famous victory.