The International Tennis Federation has banned two Turkish officials for life for manipulating scores of matches, assisting fraudulent betting.

The ITF says Serkan Aslan and Mehmet Ulker had their officiating certifications permanently revoked after being found guilty of ethics violations while working on matches in the lower-tier Futures circuit.

The federation says Ulker delayed inputting scores into a device at an event in Turkey, giving third parties an advantage when placing bets.

The ITF also found that Aslan and Ulker manipulated scores by inputting fictitious deuce games into their devices while officiating matches last year.