Sir Andy Murray hit out on social media at suggestions that based on performance and results he should not be part of the Team GB Olympic squad.
The two-time Olympic champion was named on Thursday as one of two men's singles players in the team - alongside world number 26 Dan Evans.
That left some observers questioning the absence of Queen's runner-up Cameron Norrie.
ATP Tel Aviv
Highlights: Cilic celebrates birthday by fighting back to beat Thiem at Tel Aviv Open
28/09/2022 AT 20:55
But Murray - now ranked outside the ATP Top 100 - assured them that he had not taken Norrie's slot away from him.
"Cam chose not to play," he explained on social media.
Each nation is allowed four singles players. I used my special exemption as previous winner to take my spot in the draw. It [has] no bearing on Cam or any other British player's chance to compete.
Unlike his older brother Jamie, Murray will also be playing doubles in Tokyo - as British number one Joe Salisbury has asked him to pair up.
Salisbury won the Australian Open in 2020 alongside usual partner Rajeev Ram of the USA.
Two years after US Open win, can Thiem return to the top of tennis?
14/09/2022 AT 08:24
US Open
Pablo Carreno Busta - Dominic Thiem - US Open Highlights
30/08/2022 AT 00:40