Rory missed out on Scotland's match with New Zealand last weekend but he's back on his wing for the derby clash.
"I've done all the tests and was cleared on Tuesday," Rory said in The Times. "It was unfortunate to miss the All Blacks but this is almost as important to me as I will be up against one of my direct rivals in Simon Webster, and I am determined to make sure I get my Scotland place back for the Six Nations."
Rory is one of two head injury victims back in the Glasgow side, with Euan Murray, who suffered a number of side-effects from his concussion, also making his return and again he is aiming to state his case for a Six Nations berth.