SAN ANTONIO (Ticker) -- The Phoenix Suns have risen to just about every challenge this season but will arguably face their biggest one yet Tuesday when they meet the San Antonio Spurs at the SBC Center.

The Suns have won 11 straight games and 20 of their last 21 en route to the best start in the NBA since the Chicago Bulls opened the 1996-97 campaign 25-3.

Steve Nash has recorded at least 10 assists in every game during Phoenix's streak, including Sunday's 106-94 victory over the Toronto Raptors. Nash, who was named Western Conference Player of the Week on Monday, had 18 points and 13 assists and Amare Stoudemire added 33 points.

Stoudemire has reached the 30-point plateau in each of his last three outings and ranks fourth in the league with a 25.6 scoring average.

The Suns' 11-game winning streak matches the second longest in team history, behind only a 14-game stretch in December 1992.

To extend its streak to 12, Phoenix will have to hand San Antonio just its second loss at home this season.

The Spurs, who own the second-best record in the NBA, have won six of their last seven, including all five at the SBC Center.

Two-time MVP Tim Duncan has been held in check in the last two games, scoring just 16.5 points, but Tony Parker has picked up the slack with 23 per game over that stretch after a 27-point performance against the Boston Celtics on Sunday.