Semi-finalists head into domestic action

Leinster will be looking to back up last weekend's impressive victory over Ulster in the Magners League with a win on the road on Saturday when they travel to Northern Italy to face Aironi.

With two rounds of action remaining, Munster have already clinched the top spot in the table ahead of the play-off's but Leinster will be looking to cement their place in second and secure themselves a home semi-final.

Leinster ran out 26 v 16 winners at the RDS when the sides met earlier in the season but they will be under no illusions of the task ahead of them in Italy.

Reigning European Champions and Top 14 leaders Toulouse will be looking to put last weekend's disappointing defeat to Toulon to the back of their minds as they play their final game before their Heineken Cup semi-final in Dublin against Bourgoin.

The visitors currently sit bottom of the French league with just five points to their name and Toulouse will look to extend their lead at the top over Racing Metro with a victory at home.

Heineken Cup semi-final: Northampton v Perpignan

Northampton face their third game in eight days this weekend when they travel to London Irish.

Defeat to Gloucester on Tuesday night left the Saints just four points above the Exiles in the race for a end of season play-off place and Jim Mallinder's men will target a win on the road to carry them into their semi-final clash with Perpignan full of confidence.

In a repeat of the Heineken Cup quarter-final Perpignan face Toulon in the Top 14 on Saturday. Perpignan will travel to the French coast themselves looking for a late charge into the play-off spots.

Amlin Challenge Cup quarter-final: Munster v Harlequins

Victory over the Scarlets secured Munster a home semi-final in the Magners League play-off and this weekend they face a tricky trip back to Wales to face current Champions the Ospreys.

The Irish side are unbeaten in the competition since early February and won the battle earlier in the season between the two sides at Thomond Park.

Harlequins will be looking to bounce back from their defeat at Bath last weekend when they travel to Leeds on Sunday.

The London-based side are currently seventh in the English Premiership and will be looking for a win on the road to try and take the all important sixth place, which will ensure them of Heineken Cup rugby next season.

Amlin Challenge Cup quarter-final: Stade Francais v Clermont Auvergne

Stade Francais will be looking to close the gap on Bayonne who are just above them in table when the sides meet on Saturday afternoon.

The hosts will be looking to put a run of three successive Top 14 defeats behind them and get back to winning ways ahead of their all-French Amlin Challenge Cup semi-final.

Following their victory of Stade Francais last weekend Clermont are at home on Saturday and host La Rochelle in a repeat of the Amlin Challenge Cup quarter-final on the Atlantic coast.

Clermont are currently fourth in the table but find themselves only two points behind second placed Racing Metro so they will be going all out for a win to find themselves an easier passage through the end of season competition.