Nick Kyrgios was fined $113,000 (£93,254) for five separate offences in Cincinnati and Andy Murray says he must change his ways.
Nick Kyrgios let his volatile side rise to the fore as he verbally abused an umpire and smashed two rackets, costing him a big ATP fine.
Marin Cilic and Andy Murray both exited the ATP Masters 1000 tournament in Cincinnati on Monday.
After defeating Daniil Medvedev in the Citi Open final, Nick Kyrgios was quick to thank those who had always shown faith in him.
Winner of the Mexican Open this year, Nick Kyrgios outlasted world number 10 Daniil Medvedev 7-6 (8-6) 7-6 (7-4) in Washington on Sunday.
Nick Kyrgios saved a match point in a third-set tie-break to see off Stefanos Tsitsipas 6-4 3-6 7-6 (9-7) in a Washington thriller.
In what shapes as an entertaining semi-final, Stefanos Tsitsipas will face Nick Kyrgios at the Citi Open.
Stefanos Tsitsipas was too good for Australian Jordan Thompson, prevailing 6-3 7-6 (7-4) to book a spot in the last eight on Thursday.
As five seeds fell at the Citi Open, Stefanos Tsitsipas and Nick Kyrgios were second-round winners.
Yet to hit top form this year, Marin Cilic battled through the second round of the Citi Open.