Defending champion Alex de Minaur beat Stefanos Tsitsipas for the first time to reach the semi-finals of the ATP hardcourt tournament in Acapulco, Mexico on Thursday.
American 12th seed Taylor Fritz dumped last year's Australian Open runner-up Stefanos Tsitsipas out of the tournament on Sunday
Stefanos Tsitsipas said he was delighted with the passion and determination he showed Friday to sweep into the Australian Open fourth round in straight sets
Grigor Dimitrov kept up his late-season charge by squeezing past Stefanos Tsitsipas in three sets on Saturday and into the final of the Paris Masters.
Novak Djokovic edged out Holger Rune on Friday to avenge his defeat in last year's Paris Masters final and reach the last four
Stefanos Tsitsipas powered his way into the semi-finals of the Paris Masters with a dominant 6-3, 6-4 victory over Karen Khachanov on Friday.
Shanghai Masters top seed Carlos Alcaraz fought through what he called "one of the toughest matches this year" to make the tournament's final 16.
Carlos Alcaraz won his 13th ATP match in a row as the world number one began the Toronto Masters by defeating Ben Shelton 6-3, 7-6 (7/3) on Wednesday.
Carlos Alcaraz defeated seven-time champion Novak Djokovic to claim his first Wimbledon title on Sunday.
Stefanos Tsitsipas crashed out of Wimbledon at the hands of unseeded American Christopher Eubanks after a thrilling five-set battle on Monday.