Ospreys have done their part, they have ensured their hopes of making the play-offs will go down to the final weekend.

Before the 15:00 kick-off on Saturday at the Swansea.com stadium Ospreys had seen top-eight rivals Edinburgh and Benetton get what may yet be a crucial bonus point each against Munster and Bulls respectively.

Those results, coupled with Ospreys’ inferior points difference meant they would almost certainly need two bonus point wins in their final two games with nine points between them and the play-off positions before kick off against the Dragons.

However, with the storm clouds looming over the Swansea.com stadium, Ospreys did enough to ensure they are still in the hunt with a four-try win against their East Wales rivals.

Tries from Dewi Lake on his 50^th Ospreys appearance and Reuben Morgan-Williams in the final minutes of the first half set things up before, Lake again and Keiran Williams scored tries in the second.

Dragons to their credit battled hard with all of their 13 points coming through fly-half Will Reed but will have been frustrated with their ill-discipline having led 0-6 before yellow cards to Aaron Wainwright and Dane Blacker in the final minutes of the first half ultimately led to 14 points for the home side.

The game began with an air of celebration, Ospreys’ final game at home this season marked a home farewell for several players including Sportin Wales co-founder Alex Cuthbert along with fellow Wales internationals Nicky Smith and George North.

However, the visitors would be the team to score the first points, Reed kicking a penalty early on and he doubled their lead with another successful kick from in front of the posts from a scrum penalty.

Ospreys on the other hand were perhaps guilty of chasing the bonus point early on and being caught up in the occasion, Morgan-Williams taking a quick tap and Dan Edwards attempting to bite off too much with a wayward kick to touch early doors.

For the opening 25 minutes, Dragons had stuck to task and limited their derby rivals, subduing the home crowd.

The biggest cheer of the opening half hour came after a brilliant tackle from Keiran Williams gave Ospreys captain Justin Tipuric a chance of a turnover, which he duly obliged, winning a penalty.

From that point onwards Ospreys gained a second wind, Luke Morgan breaking down one wing before Jack Walsh broke down the opposite side only to knock on.

However, the referee was beginning to lose patience with the visitors’ ill-discipline, and after another kick to the corner, Dragons eight Wainwright was shown a yellow card by referee Ben Breakspear.

With Dragons down a man, Ospreys looked to capitalise and, after being held up over the line, they took a tap penalty from five metres out and a couple of phases later Lake powered his way over, with Edwards’ conversion giving his side the lead.

Minutes later, and with the clock in the red, Ospreys trundled a driving maul from their own 22 almost to the halfway line and when Morgan Morris made a half break off Morgan-Williams’ pass, Dragons scrum-half Dane Blacker cynically knocked the ball out of Tipuric’s hands and Breakspear reduced Dragons to 13.

From there Ospreys kicked again to the corner, and with Dragons afraid of another maul, Ospreys threw a quick trick play with Morris running like a bull down the blindside, where Blacker would have been, before feeding Morgan-Williams to score, with Edwards converting for a 14-6 halftime lead.

With seconds gone in the second half a brilliant kick and chase from Jack Walsh gave Ospreys another penalty and they once again kicked to the corner, this time opting for brute force from the driving maul with Lake the beneficiary from the base.

All the momentum seemed with Ospreys, and when player of the match Morris broke free with Morgan-Williams and Keelan Giles outside him a try looked inevitable but for a poor pass from the eight resulting in nothing and a missed opportunity.

Dragons to their credit found a bit of energy and, after getting good territory inside Ospreys’ 22, a strong carry from Chris Hollis and good hands from substitute Sio Tomkinson found Reed who went over by the posts.

With a little over 20 minutes remaining the rain began to pour down at the Swansea.com stadium, directly preceding Ospreys’ crucial bonus point score with Keiran Williams busting through and stretching over, despite the visitors complaining of a double movement.

Sam Parry thought he had grabbed his fifth try after brilliant hands from Edwards gave both Luke Morgan and Giles a chance to go close but was deemed to be held up following a TMO review.

Dragons to their credit thought they had responded with the try of the game after brilliant work from the base of the scrum by Wainwright and good hands by Reed and Hollis put Ewan Rooser away, only to see his reverse pass to Tomkinson drift forward.

With 12 minutes remaining Nicky Smith was substituted leading to a standing ovation on his 189th appearance and final one in an Ospreys shirt at the Swansea.com stadium.

Ospreys: (14) 26 Tries: Lake x2, Morgan-Williams, K. Williams Con: Edwards x3

Dragons: (6) 13 Try: Reed, Con: Reed Pen: Reed x2

Ospreys: Walsh; L. Morgan, Florence (Scully 71mins), K. Williams (Nagy 74mins), Giles; Edwards, Morgan -Williams (Davies 78mins); Smith (Thomas 68mins), Lake (Parry 60mins), Botha (Henry 55mins), Ratti(Sekekete 71mins), Sutton, J. Morgan (Deaves 62mis), Tipuric, Morris.

Dragons: E. Rosser; Dyer, Hughes (Westwood 59mins), Owen (Tomkinson 52mins), Hollis; Reed, Blacker (Lloyd 70mins); Jones (Martinez 45mins), Dee (Coughlan 48mins), Coleman (Arhip 59mins), Carter, Screech (Lonsdale 66mins), Keddie (Woodman 45mins), Basham, Wainwright.