Novak Djokovic said Monday he is ready to atone for his shock Australian Open exit as he prepares to return to action in Acapulco.
Marseille winner Jo-Wilfried Tsonga returned to the world's top 10 when the ATP rankings were released on Monday.
Elina Svitolina of Ukraine is set to debut in the top 10 after winning her second title of the season at the Dubai Tennis Championships on Saturday.
Angelique Kerber said she needed to nurse her injured knee after a semifinal defeat at the Dubai Tennis Championships on Friday ended her chances of reclaiming the world number one ranking.
Second-seeded Karolina Pliskova and third-seeded Dominika Cibulkova both lost their opening matches at the Dubai Tennis Championships on Tuesday.
In an all-American matchup, Alison Riske upset 11th-seeded Coco Vandeweghe 6-4, 6-4 to move into the second round at the Dubai Championships on Monday.
Ryan Harrison served up the ace that won him his first career ATP World Tour title, then stuck both hands over his head pointing index fingers skyward in celebration.
American Ryan Harrison and Georgia's Nikoloz Basilashvili, unseeded players seeking their first ATP titles, advanced to the Memphis Open final with straight-set triumphs Saturday.
Donald Young upset No. 2 seed John Isner 7-6 (5), 3-6, 7-6 (6) on Friday night in the quarterfinals at the Memphis Open for his first victory in four tries over the world's 23rd-ranked player.
Canadian tennis star Eugenie Bouchard paid off her lost Super Bowl bet Wednesday by joining blind date John Goehrke at a Brooklyn Nets NBA home game against Milwaukee.