For the San Antonio Spurs, the saying, "if it ain't broken, why fix it?" is appropriate for their off-season so far.

After a run to the Western Conference Finals in the 2011-12 season, the San Antonio Spurs  retained the services of iconic big man Tim Duncan, and re-signed role players Danny Green and Boris Diaw.

The 36-year-old Duncan had declared himself a "Spur for life" during the playoffs, and the big man kept true to his word, agreeing to an extension for an undisclosed sum. The new contract has a base of two seasons, with a player option for a third, and is said to be fully guaranteed. The former number one overall pick also has a no-trade clause, according to Yahoo Sports's Johnny Ludden.

Duncan last season look revitalized after a huge drop in his numbers the year prior, norming 15.4 points, 9.0 rebounds, 2.3 assists and 1.5 blocks over 28.2 minutes. He also shot 49.2 percent from the field.

Also returning with Duncan are swingman Danny Green and forward Boris Diaw.

Boris Diaw has reached agreement on a two-year, $9 million-plus contract to stay with San Antonio, league source tells Y! Sports.

— Adrian Wojnarowski (@WojYahooNBA) July 10, 2012

Last season, Diaw was waived by the Charlotte Bobcats, but found a place in San Antonio, where he averaged 4.7 points on a career-best 58.8 percent shooting, 4.9 rebounds and 4.0 assists. His two-year deal is worth $9 million, with the second year being a player option.

Source says free agent Danny Green has agreed to return to San Antonio on a three-year deal, $12 million.

— Sam Amick (@sam_amick) July 10, 2012

Green on the other hand, was vastly improved in his second stint with the Spurs, after eight games with the team during the 2010-11 season. In 66 games of the lockout-shortened season, the former second round pick of the Cleveland Cavaliers posted averages of 9.1 points (43.6 percent from beyond the arc), 3.5 rebounds, 1.3 assists, 0.9 steals and 0.7 blocks.

His new deal is said to be worth $12 million over three years.

The Spurs still have outstanding team options on DeJuan Blair and Gary Neal, though Blair has said that he doubts he will remain with the team.

The deals are expected to be finalized once the moratorium on new contracts is lifted on July 11 (July 12, PHL time). - AMD, GMA News