Australian Nick Lindahl has been banned for seven years and received a huge fine after being found guilty of match-fixing.
Lindahl received his punishment after proposing to lose a match in return for payment at the Australian F6 tournament in Toowoomba, Queensland in September 2013.
The 28-year-old, who reached a career-high singles ranking of 187, received a fine of $35,000 to go with his seven-year suspension.
Lindahl retired from tennis in 2013, but cannot attend tournaments or events organised by the sport's governing bodies.
Brandon Walkin was handed a six-month suspension, which is suspended for six months, and Isaac Frost has served a ban for failing to co-operate with the Tennis Integrity Unit's investigation.
Walkin was banned for passing a corrupt proposal to another party on behalf of Lindahl.