With the European championship moving into high gear winning games is becoming more important and that proof on Friday night when Ospreys put in a massive second half performance to come from behind and upset Clermont with a 21-13 win.
Sam Davies scored 15 points for Ospreys coming from them bench but what won the game for Ospreys was the massive defensive effort the players put in the second half to knock Clermont back in every attack they launch.
At the break Clermont was in the lead 13-6 and dominate most parts of the game with Ospreys on the back foot.
Clermont failed to build on the lead in the second half which saw Ospreys jumped to the top of the pool 2 after the win.
Clermont have not been able to find there normal fluent game this season and on Friday night they were out muscled by a determined Ospreys side.
Justin Tipuric was superb and one of his surging runs set up the position for Biggar to kick his first penalty of the evening.
Clermont were under severe pressure and for most of the second half and just could not get into the match.
As conditions worsened, Clermont began to overplay and the Ospreys took advantage with Davies adding successive three-pointers late on to seal the win.
Pens: Biggar 2, S Davies 4
Drop Goals: S Davies
Pens: Parra 2
Yellow Cards: Kolelishvili, Ulugia