Christian Lewis-Pratt inspired Leeds Carnegie to their first win of the season with a 23-9 triumph over Bucuresti Oaks in Pool Four of the Amlin Challenge Cup.
The 19-year-old contributed an eight-point haul before Henry Fa'afili put the game beyond doubt with an injury-time try.
The pack also played their part and were rewarded for their dominance with a second-half penalty try.
In Pool One, I Cavalieri Estra picked up the first Italian win on the opening weekend of European action as they overcame last season's semi-finalists Connacht 23-21 in a thrilling game.
A try from South African-born lock Wouter Moore eventually proved the difference between the two sides, although Connacht's Ian Keatley hit the post with a last-gasp drop-goal attempt.
Montpellier got off to a perfect start in Pool Three with a 20-13 win over Exeter at Sandy Park.
An early Dimitri Pelo converted try put the visitors in the driving seat as Exeter struggled to get a hold on the game.
Montpellier fly-half Raphael Lagarde kept the scoreboard ticking over to give them a 13-6 half-time lead, the Chiefs' only points coming from the boot of Ryan Davis.
Seta Tuilevuka struck with a devastating try shortly after the interval, but the Chiefs came back and scored a try of their own thanks to Chad Slade in the final minutes. Davis kept his cool and converted to snatch an unlikely losing bonus point
Elsewhere, La Rochelle recorded a 38-3 victory over Rovigo in Pool Five.