Scotland flanker Kelly Brown has failed to recover from illness in time for Glasgow's Magners League trip to Cardiff tomorrow.
Warriors head coach Sean Lineen was forced to delay naming his team for the match until this morning after more than 20 of his squad were struck by a flu bug.
Enough players have recovered to allow Lineen to make only one change to the starting XV from last Friday’s defeat to the Ospreys.
Richie Vernon comes in for Brown at blindside flanker and Lineen said: “Kelly is still suffering from some flu-like symptoms so the decision has been to promote Richie to the starting line-up.
“Richie came on and did very well last week so he’ll have no trouble slotting straight into the side.”