FRISCO, Texas — Brad Guzan made five saves for his MLS-leading 12th shutoutof the season to help Chivas USA tie FC Dallas 0-0 on Thursday night.

Chivas (15-6-7) extended its unbeaten streak to 11 games (7-0-4) and movedfour points ahead of Houston for the Western Conference lead with two games leftfor each club. Guzan has the second-highest shutout total in MLS history,trailing Tony Meola’s league-record 16 with Kansas City in 2000.

With the tie, FC Dallas (13-11-5) has just one victory in its last six(1-3-2) and is now locked into the West’s third seed, unable to catch Houstonfor second and comfortably ahead of Colorado in fourth. Backup goalkeeper RayBurse, a 23-year-old rookie, earned his second career shutout in just his fifthMLS start by turning aside one shot.

With each club having already clinched berths in the upcoming MLS Cupplayoffs, neither displayed much urgency to snap the tie, although Dallas’Arturo Alvarez had perhaps the match’s best scoring chance in the first minuteof injury time, drilling a shot from the corner of the penalty box past Guzanand off the near-side post.

Dallas played the final 10-plus minutes a man down after Bobby Rhine wasejected with a red card, apparently for vociferously arguing a yellow cardissued to Alvarez moments earlier.

Guzan made an impressive diving stop on Kenny Cooper’s blast from thepenalty dot in the 72nd minute. He also made a nice kick save on Abe Thompson,the MLS Player of the Week after scoring two goals last week, on a partialbreakaway in the 43rd minute.

Another game-saving save by Guzan came in the 30th minute, when he made adiving deflection of Adrian Serioux’s left-foot kick from about 30 yards out inthe 30th minute.