(My Sportsbook) - The Montreal Expos try for their sixth win in seven tries this afternoon when they continue their four-game set against the Colorado Rockies at Coors Field.

In the third portion of the series on Saturday, Henry Mateo's pinch-hit two- run single in the 10th inning lifted Montreal to a 6-4 win over Colorado.

Vladimir Guerrero, Orlando Cabrera and Wil Cordero each finished with two hits for the Expos, who have won five of their last six and nine of 12. Luis Ayala (4-1) tossed two shutout innings for the victory and Rocky Biddle worked the 10th for his 12th save of the season.

Mateo's pinch-hit single off Todd Jones snapped a 4-4 tie. Brad Wilkerson walked and Cordero singled to open the inning. After Jose Macias reached base on a sacrifice bunt to load the bases, Wilkerson was thrown out between third and home on a botched bunt attempt by Mateo. On the next pitch, however, he drove home Cordero and Macias with a hit to center.

Tomo Ohka gets the call today for the Expos and is 3-4 on the year with a 4.73 ERA. Ohka failed to pick up a decision in his last start, allowing four runs on eight hits over 4 1/3 innings to the San Francisco Giants. The Expos went on to win the game, 6-4.

Ohka, who led the Expos with 13 wins a season ago, will be making his second career start against Colorado.

Montreal is 13-8 on the road this year, while the Rockies are 14-7 at Coors Field. Montreal is also 11-4 versus the NL West this season.