US Open champ Jannik Sinner is a young man in a hurry. He is 23, is No. 1 and has 2 Slam titles

NEW YORK (AP) — New U.S. Open champion Jannik Sinner is making big strides in a short amount of time. And that, he figures, bodes well for what's to come. Just 23, Sinner already reached No. 1 in the ATP rankings a few months ago and, on Sunday, collected the second...