GREGOR TOWNSEND has called for an improvement from his Glasgow Warriors if they are to enjoy the home comforts they crave.

A 21-10 defeat to Ospreys in Wales, combined with results elsewhere, leaves the Scotstoun club in second place in the Guinness Pro12 - tied with their conquerors and Munster - with Ulster sitting just a point behind.

With the top two teams in the league earning home advantage for the play-off semi-finals, the pressure is now on ahead of the last game of the season against Ulster on Saturday where a win is vital.

But, after being disappointed with his team's second-half showing in Swansea, Townsend knows there is work to be done to make sure they reach their goal.

"Ulster are a really good team and we know we'll have to play better than we did against Ospreys to win," said the Glasgow head coach.

"We will train hard this week and will look at how we can beat Ulster. We always learn, whether we win or lose.

"They are a quality side, like the other three teams that are left in the play-offs, so we'll have to be better to win.

"It's up to us as coaches and players to find out weaknesses or things they like to do that we can take away from them."

It was an uneventful first half against Ospreys with just a penalty apiece to show for their efforts.

But, after the interval, the hosts took control as tries from Ben John and Rhys Webb, as well as a Dan Biggar penalty, meant Chris Fusaro's try counted for little.

Townsend added: "It was tight in the first half, but the conditions were tough and we lost it in the third quarter. It's now a huge game against Ulster.

"There are a lot of things we have to improve. We need to do things better as a team. Individually, we've got to make sure we don't give up easy ball."

Stuart Hogg added: "Ospreys probably handled the conditions better than us. Credit to them as they had a solid defence. This week is now massive for us."