By ROB COLE
SWALEC Championship round-up
CARDIFFMetmade light of two yellow cards in the first half to run out 32-15 winners over Narberth.
The students scored two tries in the opening six minutes but made life difficult for themselves when they lost Eduardo Balocco and Harri Dobbs to yellow cards in three minutes.
That opened the door for the visitors, who made the most of their two player advantage by creating a try for Rhys Lane to cut the gap to nine points. Balocco made amends for his card by crashing over at the end of the first half to give the home side a 29-10 lead.
Reigning champi...