Despite qualifying for the Heineken Cup quarter-final for only the second time in their history, Edinburgh's league form has tailed off alarmingly with five straight defeats in 2012.

Their task doesn't get any easier when they travel to Ravenhill where Ulster have lost just one of their last 18 matches in all competitions and where the last Scottish victory came back in Decmber 2009.

And Bradley is adamant if they are to end their losing streak then they will have to make the most of every chance that comes their way.

He said: "We've identified with the players that, in our recent matches at home and away, we've had opportunities but we haven't been taking them, which you simply can't afford to do at this level.

"In spite of that, we haven't sought to change too much for this weekend as the same formula applies.

"We will look to continue to create those chances but we must take and finish them. If we do that then we're capable of winning this match.

"It's a matter of concentration for the 80 minutes, doing the basics right and taking the opportunities that present themselves."

Edinburgh make four changes from the side that lost to Bradley's former side Connacht as Sep Visser, Phil Godman, John Houston and Argentine Ulises Gamboa who makes his first start for the club.

Like the Gunners, Ulster are also in the last eight of the Heineken Cup but centre Nevin Spence is injured and Chris Henry away on international duty so Robbie Diack and Adam D'Arcy come in.

And Brian McLaughlin is adamant his side are strong enough to compete on two fronts with a play-off place within their grasp.

He said: "We were in the top four briefly last week and that's where we want to be. We need to be at our best but if we get the win it will give us something more to build on as were target the PRO12 semis. But Edinburgh are a very good team and they are ranked above us in Europe.

"They've proved how good they are by qualifying for the quarter finals of the Heineken Cup and they like to play a good style of rugby under Michael Bradley.

"We played very well against them at the turn of the year and we will have to produce something similar at Ravenhill. For us, the 20-minute period after half time will be crucial. That's when we have to step it up and keep improving through to the end of the match."

At Ravenhill, 7.05pm.
Referee: Nigel Owens (WRU, 81st competition game)
Assistant Referees: Paul Haycock, Brian MacNeice (both IRFU)
Citing Commissioner : Tom McCormack (IRFU)
TMO: Marshall Kilgore (IRFU)

Live on BBC Northern Ireland