Two-time Grand Slam final runner-up Mark Philippoussis has been fined $10,000 and issued with a suspended ban of four months for breaching the sport's betting rules, it was announced Wednesday.
The International Tennis Integrity Agency (ITIA) said it had imposed the sanctions after Philippoussis, a former top-10 ATP singles player who now coaches, received payment for providing a voiceover to promotional content for a gaming operator.
The ITIA said Philippoussis co-operated fully with the investigation and did not contest the charge.
"As a sport, tennis has decided that accredited individuals should not have commercial relationships with betting companies," said ITIA CEO Karen Moorhouse.
"Whilst this case is clearly not one of corruption, it is a rule that players, coaches, and others in the sport need to be aware of."
Philippoussis, 46, was runner-up to Pat Rafter at the 1998 US Open and lost to Roger Federer in the 2003 Wimbledon final. As a coach, he has worked with Stefanos Tsitsipas.