Ospreys 12 - 15 Harlequins
The Quins overcame seven points first-half deficit to secure a 12-15 win against the Ospreys at St. Helen's during the 2016-17 Anglo-Welsh Cup clash on Friday.
The Welsh side was leading the game 12-5 by half-time, however, they failed to contribute to their points tally in the second-half.
Whereas the Quins scored a converted try to level the proceedings along with Tim Swiel's 73rd minute three-pointer to seal the proceedings.
Left-wing Tom O'Flaherty (2) and fullback Dafydd Howells (33) scored tries for Ospreys with fly-half Luke Price converting Howells' try while missing out on O'Flaherty's conversion attempt.
Number-eight George Naoupu (23) and lock Charlie Matthews (59) crossed over the try line for the visitors with Swiel only converting Mathews' try.
The Ospreys will now travel to the BT Sport Cardiff Arms Park to face the Blues next Friday while the Quins will face the Warriors at Sixways in Round 3 clash.