Wales lock Ian Evans scored the only try of an intriguing west Wales derby at Par y Scarlets as the Ospreys rose to second in the RaboDirect PRO12 table.
After this weekend there is a strong 14 points that separates Leinster at the top of the leader board from Welsh side Ospreys who narrowly beat Edinburgh this weekend.
During a busy Six Nations, the Celtic and Italian sides are in action this weekend, with squads being stretched due to the unavailablity of international stars.
One of the most exciting rugby games I have watched in a while, Dragons had momentum, then Ospreys found their momentum and their way back into the game