Saracens have extended their lead at the top of their pool in the Heineken Cup by crushing Zebre 64-3.

David Strettle got the home side off the mark just four minutes into the game as the Aviva Premiership team added four tries in the first half.

Duncan Taylor added a brace in the second period as Saracens continued to dominate, finishing the game with nine tries.

Owen Farrell put in a strong performance with the boot, converting eight of the nine tries and adding a penalty.

The result leaves Saracens five points clear at the top of pool three, while Zebre remain bottom.