Interesting one. Isner and Federer should be full of confidence, and rightly so. This is a return match and an exciting rematch for the Davis Cup tie in Switzerland, which Isner won in hugely impressive style. I expect a close match that hinges on a few points with Roger finding a way to get it done. Isner certainly has his chances.
"If you're gonna be 5'8'', you better not be bald, fat and drunk whilst asking to be put in the 'all-time great sportsman' conversation." - Zoid