Juan Martín del Potro and Nick Kyrgios book second-round spots at ROLAND-GARROS! Read more:

PARIS (AP)--Nick Kyrgios of Australia beat Philipp Kohlschreiber of Germany in straight sets to reach the second round of the French Open.The 18th-seeded Kyrgios hit 20 aces on his way to the 6-3, 7-6 (4), 6-3 victory.Kyrgios argued lengthily with the umpi