Sam Davies kept his nerve from the tee with five penalties as Ospreys come back from behind, thanks to a fine second-half performance, to down Edinburgh 27-13.

Edinburgh have now lost their last four fixtures in all competitions, but scored the first try of the match in the first half through prop Allan Dell.

But teenage flanker Sam Underhill’s try just before the break signalled a change in momentum – and Davies did not miss any opportunity that came his way.

He added three penalties in the second half to his two efforts in the first, while Edinburgh kicker Greig Tonks could only muster two of his own.

And after Neil Cochrane received a late sin bin, replacement Scott Otten added the gloss for the Welsh region with a late try.

Edinburgh controlled much of the opening stanza and Phil Burleigh fired the first warning shot after making a dash, but could not find the hands of half-back partner Sean Kennedy.

But, in much part down to the slippery conditions, James King knocked on to give Edinburgh an attacking scrum and the visitors pressed home their advantage.

A scrum penalty handed Tonks the opportunity to line up a shot at the posts, and he promptly slotted over with 11 minutes gone.

But despite Edinburgh’s dominance, Ospreys levelled the scores with what was their first foray into enemy territory – Sam Davies bagging the three points.

Ospreys were then pinged at the breakdown twice in succession, and Tonks successfully slotted one kick out of the two to nose Edinburgh back in front.

Davies was not wasting any of his sighters however, and again tied the scores when Edinburgh failed to roll away.

It wouldn’t stay that way for long as Edinburgh finally make their increased possession count, as Tonks scythed his way through Ospreys’ line and found Dell.

Dell dotted down between the posts before creator Tonks added the extras to open up a seven-point advantage for Edinburgh.

Tonks was having a mixed night from the tee though, missing an opportunity on the half-hour, before Ospreys put together their best move of the first half.

Davies played a delicious chip through and Ben John reeled it in before off-loading for an on-rushing Underhill to storm over for his first Ospreys try.

And though Davies drew Ospreys level with the conversion, the half did not end perfectly for the hosts as Wales flanker Dan Lydiate was shown a yellow card for a no-arms tackle on Ben Toolis.

The home side edged in front for the first time shortly after the resumption when Edinburgh went off their feet and Davies bisected the posts.

Just as crucially for the Ospreys, Edinburgh could not build on their man advantage before Lydiate returned in the 48th minute.

For the remainder of the third quarter neither side could gain a foothold in the greasy conditions, while Edinburgh lock Grant Gilchrist – making his first GUINNESS PRO12 appearance in more than a year – started his shift in the 55th minute.

Indeed it began to look like which team made the fewest errors would win the day and Davies stretched Ospreys’ lead out to six with another penalty shortly after the hour-mark.

And Edinburgh’s resolve looked at an end when hooker Neil Cochrane headed to the sin-bin for an infringement in the ruck.

They nevertheless defended manfully and held out an Ospreys five-metre scrum, but a knock-on in the tackle meant Davies drilled through his fifth penalty of the game.

Hooker Otten then matched Underhill by also scoring his first try for the club, as the Welsh region eased home.

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