American Jeff Morrison eased to the second round of the Mercedes-Benz Cup with a 6-2 6-2 win over Lester Cook. Glenn Weiner fought back to defeat Hyung-Taik Lee of South Korea 3-6 7-5 6-3, while Denmark's Kenneth Carlsen beat Australian Wayne Arthurs 7-6 6-3.
Slovakia's Karol Beck showed his fighting spirit with a 3-6 7-6 6-3 win over Israel's Andy Ram.
Andre Agassi will try to become the sixth player in ATP Tour history to reach 800 career wins on Tuesday.