Saracens 33 Glasgow 31: Saracens ran in four quality tries against Glasgow Warriors to open their Heineken Cup campaign with a narrow victory.
Last season, the sides met three times in the second-tier European Challenge Cup - with Saracens managing two wins and a draw.
This time, the Guinness Premiership club, who picked up what could prove to be an important bonus point in Pool Four, should have had a bigger margin of victory to show for their territorial domination.
Lock Hugh Vyvyan, right-wing Rod Penney, number eight Ben Skirving and left-wing Kameli Ratuvou scored the Saracens tries.
Outhalf Glen Jackson, who was involved in two of them, also contributed 13 points — with two conversions and three penalties.
Cardiff 34 Bristol 18: Bristol's hopes of a priceless Heineken Cup away win were dashed by an outstanding Cardiff fightback as the Blues prevailed at the Arms Park today.
Cardiff wiped out a 13-3 deficit, racing 34-13 ahead through tries by centre Jamie Robinson, flanker Maama Molitika and his back-row colleague Martyn Williams - who touched down twice.
Fullback Ben Blair chipped in with 14 points from the boot, and Bristol could only reflect on why everything unravelled so spectacularly - despite having the last word with wing Tom Arscott's consolation score.