Roger Federer over Ivo Karlovic 7-6 (7-2), 7-6 (7-3): As you can probably guess, not only were there zero breaks of serve, but there were also zero break points faced. Still, Federer consistently held with much greater ease, as he lost only seven points on serve the entire match. The score line is not all that surprising and I doubt Federer ever felt really tested, but Ivo should still get some credit for holding his serve throughout and taking it to two 'breakers.
Fabio Fognini over Andy Murray 6-2, 6-2: His win over Ginepri in the first round probably gave Murray fans a sense of false hope. Clearly he is not close to returning to full strength after missing so much time. Unfortunately I think this result speaks volumes about the states of Murray and Ginepri rather than Fabio Fognini.
Rafael Nadal over Marat Safin 7-6 (7-4), 6-0: I didn't see it, but I imagine it could have been a tank-job in the second set. Then again, when Nadal seizes momentum he rarely gives his opponent even a glimmer of hope of getting back in the match. Losing set point chances in the first must have really demoralized Safin while pumping up Nadal. This bodes well for a potential Federer-Nadal final that many fans would like to see.