Comeback Ulster stun Ospreys

Unbeaten Ulster battled back to inflict a second successive defeat on defending RaboDirect PRO12 champions Ospreys.

The Irish province, who had posted an opening 18-10 win over Glasgow, were trailing 13-3 with 56 minutes on the clock at the Liberty Stadium.

But replacements that included All Black prop John Afoa and British and Irish Lion Stephen Ferris made a major impact as the Ulstermen ran in 13 unanswered points to keep up their unbeaten record.

The Ospreys looked set to atone for their opening 12-6 defeat in Treviso as a fine solo try from Hanno Dirksen and eight points from the boot of fly-half Matthew Morgan appeared to put them in control.

But they crumbled badly late in the second half with their scrum coming under huge pressure from Ulster's reinforced pack.

The Ospreys had enjoyed the better of an error-strewn first half, lit up by a moment of brilliance from South African-born speedster Dirksen.

There was plenty of intent shown from both sides, but all too often promising attacks were undone by sloppy handling.

Come alive

It took until 22 minutes for the game to come alive with right wing Dirksen producing a superb individual run to claim the game's first try.

Picking up a loose pass 35 metres out, Dirksen hurtled through a fragile defence, fended off Ulster full-back Jared Payne and then turned on the afterburners to make the line unopposed.

Morgan added the extras, but the Ospreys failed to build on their lead as mistakes continued to plague their game.

Fly-half Niall O'Connor made up for an earlier miss to land a fine long-range penalty after 31 minutes, but failed with an ambitious attempt from inside his own half just before the break as the Ospreys went in at half-time 7-3 to the good.

Two penalties from Morgan after the break extended the home side's advantage as the champions attempted to assert control.

But a clutch of substitutions by Ulster coach Mark Anscombe turned the match on its head.

The arrival of Afoa and Ireland prop Tom Court saw the Ospreys scrum forced into retreat, while Ferris produced some thunderous tackles.

Another replacement, Paddy Jackson, nailed a couple of penalties to make it 13-9 before yet another member of the cavalry, scrum-half Paul Marshall, claimed the match-winning score with six minutes remaining.

A sharp counter-attack from wing Craig Gilroy set up the opportunity which eventually saw Marshall touch down from close range.

It needed the television match official to confirm the score, but Marshall and his Ulster team-mates were in little doubt.

It left the Ospreys with little time to redeem themselves, but any chance they had of salvaging the win disappeared when they coughed up the ball again, leaving them with just two losing bonus points to show from their opening two matches.