Former top-50 player Daniele Bracciali has been banned from tennis for life after the Tennis Integrity Unit found him guilty of match-fixing.
His fellow Italian Potito Starace, who has retired, has been given a 10-year suspension for a similar offence.
Both players were also fined - Bracciali $250,000 (£195,500) and Starace $100,000 (£78,200).
They will both have the right of appeal through the Court of Arbitration for Sport.
The TIU says both players were found guilty of two breaches of anti-corruption rules - one in relation to contriving the outcome of matches, and the other in connection with facilitating betting on matches.