Duncan Weir kicked Glasgow's only points a the Liberty Stadium

The five tries to nil 37-6 win saw the big-money Welsh region reclaim second place in the table.

A penalty try and a try for outside-half Dan Biggar, part of his 17-point haul, were followed in the second half by Tom Smith, Ashley Beck and Jerry Collins.

Duncan Weir replied with two penalties for Glasgow.

The Ospreys scrum was dominant and they earned a penalty try on only eight minutes after Glasgow had infringed at three consecutive five-metre scrums.

A Biggar drop-goal stretched the home lead to 10-0 before the fly-half himself sidestepped his way over after an incisive break by Webb.

But just as the Ospreys looked as if they were going to run away with victory, the Warriors came back with two Weir penalties in the space of as many minutes.

The Scotsmen should have had two tries before the interval but wing DTH van der Merwe and centre Peter Murchie got over the line but failed to ground the ball. First Beck turned van der Merwe and then Hanno Dirksen prevented Murchie.

It took the Ospreys just six minutes of the second half to extend their 17-6 interval lead, the home side going through the phases before Webb put flanker Smith over for the score.

And five minutes later Biggar slotted over his first penalty to take the Ospreys' lead to 21 points.

The Ospreys finished with a flourish, bringing up the bonus point with a length-of-the-field try started by replacement wing Tom Isaacs and finished off by Beck.

A drive from a line-out saw replacement No. 8 Jerry Collins go over for the fifth try three minutes from time to put the icing on the cake.

After the game Glasgow coach Sean Lineen said: “The team is a bit low in confidence at the moment and we’re a bit low on leadership.

“Losing 16 players is just too much for us and that’s the honest truth.

“We butchered two tries in the first half. We played quite well during that period but just couldn’t score.

“Our night was summed up when Ospreys scored their fourth try. We were camped on their line and some guy tried to be the hero and go himself just for them to score at the other end. It’s tough. Really tough.

“I’ve said it before, these guys are learning the hard way and we’ve just got to dig deep and get through this patch.”