London Irish secured a valuable 29-21 European Challenge Cup win over Agen at the Madejski Stadium to take the lead in Pool 2.
Exiles fly-half Riki Flutey had the ball on a string in the first spell, scoring a try and kicking three goals as the home side took a 17-7 lead into the break.
Tries from Delon Armitage and Rodd Penney secured a crucial try bonus point for the home side, but Agen's strong finish - including tries to Sylvain Mirande and Luc Lafforgue - will be a concern for Brian Smith's men ahead of next weekend's return match at Stade Armandie.
In the final Challenge Cup game of the weekend, Border Reivers held on to beat 1997 Heineken Cup champions Brive 25-22 at Netherdale.
Backrower Andy Miller and centre Garry Law scored tries as the Scottish province took a 12-5 lead at halftime, and the reliable boot of veteran Gregor Townsend kept the home side ahead in the dying minutes. Outside-half Martin Bottini scored his second try and his side's fourth of the match in the last minute to earn his side two bonus points.
Brive will be confident of overturning the result at Parc Municipal de Brive next weekend, although a "leading runners-up" spot looks like their best chanceof making it to the Cup quarter-finals, given Newcastle Falcons' perfect record in Pool 2.