He had a lot of opportunities to pack it in on that Monday evening in Queens – down a break in the second and receiving to stay in the set, or up a break in the 4th and giving it back before serving to stay in the set. But he didn’t. Because Juan...

There’s been a great deal of discussion at this year's US Open about the problems that top WTA players have serving today. Almost as curious is the paucity of good analysis as to source of their problems. If all of a sudden women on tour are having...