Loosehead prop McGee comes into the starting line-up for Paul Thomson handing the captain's armband to Scotland stalwart Bruce Douglas.
Two new flankers are brought in the back-row; John Dalziel comes in at 6 moving Kelly Brown to number 8 in place of Semo Sititi who drops to the bench.
Andy Miller also moves to the bench making way for Scott Gray at 7.
On the changes in the pack, Bates said: "The guys that came off the bench against Connacht performed well and deserved to keep their places. We have had plenty of time to prepare ourselves for the late kick-off and are very much looking forward to the game."
Border Reivers team:
15 Stuart Moffat; 14 Simon Danielli,13 Ben MacDougall,12 Calum MacRae, 11 Nikki Walker; 10 Gregor Townsend, 9 Brendan McKerchar; 1 Tom McGee, 2 Steve Scott, 3 Bruce Douglas (CAPTAIN); 4 Opeta Palepoi, 5 Scott MacLeod; 6 John Dalziel, 8 Kelly Brown, 7 Scott Gray
Substitutes: 16 Will Kay, 17 Paul Thomson, 18 Colin Stewart, 19 Semo Sititi, 20 Johnny Weston, 21 Andy Miller, 22 James King
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