NEW YORK (AFP) - Tim Donaghy, a referee who admitted working with gamblers, placed bets upon more than 100 National Basketball Association games he officiated from 2003 through 2006, the New York Daily News reported.

Federal prosecutors filed paperwork Friday indicating the scope of the NBA scandal, the newspaper reported Saturday, with Donaghy having already pleaded guilty to wire fraud and passing gambling information across state borders.

"The government's investigation revealed that Donaghy provided picks for anywhere from 30 to 40 games for each of those three seasons," Assistant US Attorney Jeffrey Goldberg said in a letter filed in federal court.

Donaghy, 41, was fired by the NBA after admitting wrongdoing last year, helping friends and gamblers wager on games. He faces up to 20 years in prison when sentencing takes place July 14.

While Donaghy has not been accused of match-fixing games he officiated or wagered upon, his actions could have affected margins, point totals and eventual outcomes and clearly shattered the integrity of the league.

Donaghy would pass along information about which referees were going to handle which games, giving gamblers insight into games long before players even knew which referees were going to handle their games.

Thomas Martino, among Donaghy's gambling partners who pleaded guilty in April to their roles in the plot, said Donaghy received 5,000 dollars for each correct selection, including those in games he worked.

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