A much happier Nick Kyrgios sent Australia into the Davis Cup semi-finals when he beat American Sam Querrey in the first of the reverse singles in Brisbane on Sunday.
Roger Federer defeated long-standing rival Rafael Nadal 6-3, 6-4 to win the Miami Open on Sunday and continue his outstanding start to the year.
Roger Federer dramatically fought his way into the Miami Open semi-finals with a 6-2, 3-6, 7-6 (8/6) victory over Czech 10th seed Tomas Berdych on Thursday.
Unseeded Italian Fabio Fognini upset second ranked Kei Nishikori 6-4, 6-2 on Wednesday to earn a Miami Open semi-final clash with Rafael Nadal.
Top seed Stan Wawrinka crashed out of the Miami Open on Tuesday falling 4-6, 6-2, 6-1 to German young gun Alexander Zverev, who booked his first Masters 1000 quarter-final.
In-form Roger Federer powered his way into the fourth round of the Miami Open with a 6-3 6-4 win over Argentina's Juan Martin del Potro on Monday.
Roger Federer's comeback from injury has been so successful that his compatriot Stan Wawrinka believes he can become the oldest world number one in history at the age of 35.
Roger Federer claimed a record-equalling fifth ATP Indian Wells Masters title on Sunday, continuing his career resurgence with a 6-4, 7-5 victory over Stan Wawrinka.
Five-time champion Novak Djokovic will be out to reassert his dominance on the hard courts of Indian Wells this week, seeking to shake off the slump that has dogged him into 2017.
World number one Andy Murray eased into the second round of the Dubai Tennis Championships on Tuesday on his return to court five weeks after suffering a shock Australian Open exit.