Dan Biggar’s boot came to the rescue to earn Ospreys a 29-29 draw, after they threw away the lead and a man advantage at Leinster in the RaboDirect PRO12.

Two quickfire second-half Ospreys tries for Joe Bearman and Ashley Beck had looked to have the visitors in control, after Richardt Strauss had given the Leinster the advantage.

But, despite Sean Cronin’s sin bin, the hosts roared back into the contest and Jack McGrath’s try was topped off by a Jimmy Gopperth penalty in the final five minutes – but Biggar struck in added time to draw level.

Biggar opened the scoring, putting Ospreys ahead from the tee after just three minutes, but Strauss crossed the line two minutes later to give Leinster the lead after smart work down the right from Brendan Macken.

And the hosts were in a dominant mood, taking a 10-3 lead when a break from the scrum led to Dave Kearney scoring down the left flank – but Gopperth missed his second conversion from two attempts.

Fly-half Gopperth made some amends after 24 minutes, easing Leinster into a ten-point lead with a drop goal, but an infringement from the kick-off handed Biggar another penalty, which he sent between the posts.

Gopperth continued his comeback with the boot shortly after the half-hour mark to hit a penalty from the ten-metre line and restore Leinster’s ten-point advantage.

And Gordon D’Arcy conceded the visitors’ third penalty of the game on the stroke of half-time, which Biggar gratefully accepted to leave Ospreys trailing 16-9 at the break.

Biggar picked up the second half where he left off, slotting a penalty five minutes after the break, but Gopperth returned the favour five minutes later.

A quickfire double from the visitors turned the game on its head 15 minutes into the second half as Bearman and Beck eached scored tries.

The Welsh side spread the ball well for Bearman to touch down and Leinster were all over the place as Beck put them in control – Biggar kicked both conversions.

Leinster responded well and found themselves camped in the Ospreys’ 22 shortly after the hour mark, but the defence held firm.

Leicester’s Sean Cronin was sent to the sin-bin after 67 minutes and the hosts looked up against it, but a McGrath try, following a number of drives and a fine catch by Jordi Murphy, drew them level ten minutes from time.

Gopperth kicked Leinster into a narrow lead from close range with four minutes remaining but Biggar struck the final blow to earn Ospreys a share of the points.