Federer wins ATP 500 event in Rotterdam . Beats holder Andrea Petkovic in six -set final . Completes full set of tennis honors and tour-level titles . Rotterdam wins Diamond Games tournament .
Stanislas Wawrinka wins ATP 500 event in Rotterdam . Beats holder Tomas Berdych in three-set final . Completes full set of tennis honors and tour-level titles . Andrea Petkovic wins the WTA Diamond Games tournament .