The UFC is in mainland China for the first time this week, and “The Ultimate Fighter 17” winner Kelvin Gastelum is poised for a potentially massive leap.Gastelum (13-3 MMA, 8-3 UFC), who currently stands as an honorable mention in the USA TODAY Sports/MMAjunkie MMA middleweight rankings, meets former UFC 185-pound champion Michael Bisping (30-8 UFC, 20-8 UFC) in the main event of UFC Fight Night 122, which takes place Saturday at Mercedes-Benz Arena in Shanghai. Bisping stands No. 3, meaning Gastelum could potentially make a big run up the list should he prove victorious in the UFC Fight Pass-streamed headliner. Just how far remains to be seen, provided he can get past a stern test against Bisping. Check out all of the rankings above.