Cardiff Blues moved into second place in the Magners League after defeating Leinster at the Cardiff City Stadium.
With fly-half Ceri Sweeney calling the shots, the Welsh side fully deserved their victory. The Blues showed great ability from the start, spreading the ball wide at every opportunity, although it was Leinster who created the first scoring chance, only for centre Eoin O’Malley to misplace pass to unmarked winger Niall Morris and into touch.
A penalty by Sweeney put the Blues in front, but they missed further chances, preferring to go for the close range line-out. Mustoe was held up just short and Xavier Rush knocked on as he dived for the line, but the Blues’ were rewarded when flanker Martyn Williams popped up as a link man on the blind side of a ruck and put full-back Dan Fish in at the flag for an unconverted try.
Leinster came back in the closing seconds of the first half, with full-back Isa Nacewa, who had missed two earlier attempts, slotting over a penalty. The Irish side stepped up the pace after the break, fly-half Ian McKinley being foiled by a last-ditch tackle from Tom Slater, before the Leinster pack drove across the line, but were unable to ground the ball.
Cardiff soon regained control, however, with flanker Andries Pretorius to the fore, and Martyn Williams darted over only to be called back for a forward pass by Sweeney.
The home side maintained their pressure, but were unable to add to their score, and their lead only survived when Leinster fumbled a simple try.
Nacewa switched direction to send Andrew Conway into the Blues’ 22, but the winger’s final pass went to ground when flanker Dominic Ryan was clear.
Sweeney just missed with a penalty from halfway, but when he had another shot from wide out, he curled the ball inside the far post to guarantee the home side’s victory.