Kevin Anderson beat Sam Querrey 4-6, 6-3, 7-6 (1) in the final of the New York Open on Sunday to claim his fourth career ATP tour title.
Roger Federer claimed his 20th Grand Slam title with a 6-2, 6-7 (5-7), 6-3, 3-6, 6-1 win over Marin Cilic in the Australian Open final on Sunday.
Caroline Wozniacki beat Simona Halep 7-6 (7-2), 3-6, 6-4 in an epic Australian Open final in Melbourne on Saturday.
Blistered feet forced Hyeon Chung to retire when trailing Roger Federer 6-1, 5-2 in their Australian Open semi-final on Friday.
Marin Cilic beat Kyle Edmund 6-2, 7-6 (7-4), 6-2 on Thursday to reach his first-ever Australian Open final.
World No 1 Simona Halep battled past Angelique Kerber on Thursday to set up an Australian Open final against Caroline Wozniacki.
Roger Federer is two wins away from his 20th Grand Slam title after beating Tomas Berdych at the Australian Open.
World No 1 Rafael Nadal has been ruled out of action for three weeks after being diagnosed with a torn inner hip muscle.
Marin Cilic beat an injured Rafael Nadal 3-6, 6-3, 6-7, 6-2, 2-0 (ret) on Tuesday to set up a semi-final showdown with Kyle Edmund at the Australian Open.
Hyeon Chung upset Novak Djokovic on Monday to progress to the Australian Open quarter-finals, while Roger Federer beat Marton Fucsovics in straight sets.