A Croatian umpire who worked at the US Open despite being suspended as part of a betting investigation has been given a 10-year ban.
Denis Pitner was originally banned for a year in August for passing on details about a player's fitness and accessing an account used for betting.
But a United States Tennis Association error meant he was able to work at Flushing Meadows for the 2015 event.
Pitner's suspension will run until 19 April 2026.
The ban covers any officiating at Grand Slam tournaments and events organised or sanctioned by the ATP, WTA and ITF.