Fans who bought tickets for Sunday's ATP World Tour Finals event will receive a 60% refund after Rodger Federer pulled out of the men's final.
Federer was forced to withdraw from his eagerly anticipated showdown with world number one Novak Djokovic after suffering a back injury during his semi-final victory over Stan Wawrinka.
Andy Murray, who was thrashed by Federer earlier in the tournament, agreed to step in for a one set exhibition match with Djokovic, but organisers have agreed to reimburse fans.
A statement on the ATP World Tour website read:
"Following the unfortunate circumstances that prevented the singles final from taking place as part of the final session of the 2014 ATP World Tour Finals , all ticket holders who purchased regular tickets through authorised ticketing channels will receive an automatic 60% refund.
Customers will be contacted directly via their respective ticketing outlets with specific details on how they will receive their refund."
Andy Murray has been emphatically knocked out of tennis' ATP World Tour Finals after a punishing 6-0 6-1 defeat to Roger Federer.
The first set score at London's O2 Arena confirmed the British number one's tournament exit as he could no longer better the record of his inspired Swiss opponent nor his previous Group B conqueror Kei Nishikori.
Federer's dominance proved unrelenting as he raced into a 5-0 second set lead until Murray salvaged some pride and a few home court cheers by winning a game at the 12th attempt.
Both Federer and Nishikori progress to the semi finals of the competition, which features the year's top eight players only.
Andy Murray will go head-to-head with six-time champion Roger Federer at the ATP World Tour Finals in London.
Despite that, the British number one looks to have been given a kind draw as he was matched with Federer, Kei Nishikori and Milos Raonic in Group B, with the latter two competitors playing in the season-ending tournament for the first time.
Murray avoided world number one Djokovic, who has beaten Murray on the four occasions they have played each other this year.
Djokovic will face Stan Wawrinka, Tomas Berdych and Marin Cilic in Group A.
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Swiss tennis player Roger Federer has been beaten by Spain's Tommy Robredo in the fourth round of the US Open tournament in New York.
In a stunning upset, Robredo won in straight sets: 7-6(3) 6-3 6-4
Roger Federer, who played his first Wimbledon in 1999, said he would be playing at the Championships for "many more years to come."
#Federer: "Looking forward to next year, that I can do better here next year. I still have plans to play for many more years to come."
#Federer: "He was uncomfortable to play against. He served and volleyed really well. I think he did really well. I struggled on big points."
Asked how he beat seven-time Wimbledon champion Roger Federer, Ukrainian Sergiy Stakhovsky said: "I don't know. Magic. I couldn't have played any better today. I played everything I needed. I played everything I wanted."
Defending champion Roger Federer lost 6-7 (5/7) 7-6 (7/5) 7-5 7-6 (7/5) to Ukrainian Sergiy Stakhovsky, ranked 116th in the world, in the second round at Wimbledon, ending a run of 36 consecutive grand slam quarter-final appearances by the Swiss player.
Number three seed and seven-time Wimbledon champion Roger Federer crashed out of the tournament losing a tie-break in the fourth set to Sergiy Stakhovsky in the second round.