Tommy Bowe's try helped Ospreys come from behind to win at Glasgow in the Magners League.
The Welsh side were 16-6 down at the break, but added 20 unanswered points in the second period spurred by Bowe’s touchdown.
With two defeats in their opening three Magners League outings, the Ospreys looked to their returning Lions to make an impact, but it was Glasgow who made the running.
Graeme Morrison made he hit from Dan Parks kick off, Ospreys offended at the first scrum and Parks nailed the penalty then repeated the dose after a Rob Dewey intrusion had created panic in the Ospreys defence.
With ten minutes gone, the Ospreys scrum splintered the Glasgow pack on their put in and from the kick to the corner, Dan Biggar dropped the goal which fired up an Ospreys side who had looked really sluggish.
Parks missed with a drop goal attempt, Ospreys roared back downfield, Mike Phillips and Ryan Jones made the yards and when the penalty came, Biggar had no problem levelling the scores.
By the half hour, both sides had chances, Shane Williams for Ospreys and Morrison for Glasgow but defences ruled until Dewey shredded the Ospreys defence with a fifty five metre break, Parks pin point cross kick found Kelly Brown lurking on the opposite touchline and his flick infield found David McCall for the try.
Parks converted from the touchline to take Glasgow in 16-6 ahead at the break
A Biggar penalty two minutes into the second half narrowed the gap but big hits by Moray Low, Brown and John Barclay slowed any Ospreys momentum until a Lee Byrne break in fifty minutes put Williams away only for the flyer to be hauled down two metres short.
Ospreys kept up the pressure, and despite some feisty Glasgow defence, a crafty Hook jink put Tommy Bowe over for Biggar's conversion to level the scores.
The Ospreys No10 smacked over his third penalty and as Glasgow started to wilt as the Ospreys big men Ryan Jones and Jerry Collins bullied the home side at the breakdown and took control.
Sub Nikki Walker rubbed salt in the wound scoring against his countrymen with Biggar's conversion taking the Welshmen into the sort of lead they had very little trouble defending having scored twenty points in the second half to clinch a morale-boosting win on the road.