When the American is on form, his tennis looks like a flurry of winners and good times. But he's more interested in running the numbers.
On Wednesday, Ben Shelton defeated Lorenzo Sonego in four sets during their quarterfinal match at the Australian Open: 6-4, 7-5, 4-6, 7-6.
Lorenzo Sonego, right, of Italy reacts after winning a point during his quarterfinal against Ben Shelton of the U.S. during their quarterfinal match at the Australian Open tennis championship in ...