Ospreys recorded an impressive 19-13 victory over Munster in the PRO12 on Saturday, winning despite missing 19 players at Liberty Stadium.
With Leinster thumping Cardiff Blues to go top of the table, Ospreys needed a victory to stay in touch with the leaders, and they duly delivered with a great second half display against Munster.
The home side were missing nineteen players in all through injury and international duty, but they still had enough in reserve to see off defending champions Munster.
The visitors perhaps started the better here, as they went at the Ospreys from the start. They had much of the play for the first quarter of the contest, but both sides failed to score in the opening twenty minutes.
Matthew Morgan finally got the first score of the game, when he kicked a penalty for Ospreys, but their lead was short lived.
Munster came straight back at the Welsh side from the restart, and were rewarded just three minutes later when winger Doug Howlett dived over. Ian Keatley added the extras.
Munster pushed on from there, and when Keatley slotted over a penalty, the Irish side looked like they could push on.
However, there was to be no more scores in the first half, Munster leading 10-6 at the break.
What followed at the start of the second period was a complete turn around. Ospreys went over through Richard Fussell after just four minutes, and after match official Peter Allen awarded the try via the video referee, the game was back on.
Indeed, Ospreys stepped it up after that, and went over just five minutes later, a quick tapped penalty from Rhys Webb resulting in a brilliant individual try. Matthew Morgan missed a second conversion in succession, but Ospreys were clearly in the ascendancy.
Both sides scored a penalty apiece with fifteen to play, before a scrum marathon lasting almost ten minutes right on the Ospreys' line saw the home side survive the Munster onslaught, and see out the final minutes to take the victory.
Tries: Fussell, Webb
Pen: Morgan 3
Pen: Keatley, O'Gara
Ospreys: 15 Barry Davies, 14 Tommy Bowe, 13 Andrew Bishop, 12 Ashley Beck, 11 Richard Fussell, 10 Matthew Morgan, 9 Rhys Webb, 8 Joe Bearman, 7 James King, 6 Tom Smith (c), 5 Jonathan Thomas, 4 Ian Gough, 3 Aaron Jarvis, 2 Richard Hibbard, 1 Duncan Jones.
Replacements: 16 Mefin Davies, 17 Cai Griffiths, 18 Joe Rees, 19 George Stowers, 20 Sam Lewis, 21 Tom Isaacs, 22 Sonny Parker, 23 Hanno Dirksen.
Munster: 15 Denis Hurley, 14 Doug Howlett, 13 Will Chambers, 12 Danny Barnes, 11 Simon Zebo, 10 Ian Keatley, 9 Tomas O'Leary, 8 Peter O'Mahony (c) 7 Niall Ronan, 6 Denis Leamy, 5 Donnacha Ryan, 4 Donncha O'Callaghan, 3 BJ Botha, 2 Damien Varley, 1 Marcus Horan.
Replacements: 16 Denis Fogarty, 17 Wian du Preez, 18 Stephen Archer, 19 Paul O'Connell, 20 James Coughlan, 21 Conor Murray, 22 Ronan O'Gara, 23 Johne Murphy.
Referee: Peter Allan (SRU)