Top 14's bottom club, Oyonnax, pulled off a stunning fightback to rescue a 32-32 draw against defending champion Clermont Auvergne.

Oyonnax, which has won only once all season, looked to be heading for a thumping defeat when it trailed 29-10 at the interval at Stade Charles-Mathon.

But five second-half penalties from Ben Botica got the hosts right back into the game and the five-eighth held his nerve to earn Oyonnax a share of the spoils, adding the extras after Axel Muller's 76th-minute try.

Botica could even have snatched victory for Oyonnax in the sixth minute of additional time, only to come up short with a drop-goal attempt.

Bordeaux-Begles and Brive also played out a draw at Stade Chaban-Delmas. The game finished 27-27, with 40 points scored in the first half alone.

Elsewhere, La Rochelle thumped Pau 44-14 and Filipo Nakosi crossed twice in the second half as Agen ran in 26 unanswered points to beat Stade Francais 29-13.

Castres edged out Toulon 20-19 to leapfrog its opponent on the table, despite being outscored three tries to two.