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Drew Pomeranz has made a good first impression over his touted lefty gets to flash his stuff on the road this evening when Colorado plays the second of four straight games versus the Houston Astros.

Pomeranz was the fifth overall pick of the 2010 draft by Cleveland was the main cog in the package of players the Indians sent to the Rockies for Ubaldo Jimenez prior to the non-waiver trade deadline.

The 22-year-old made his major league debut on Sept. 11 versus Cincinnati and picked up the win with five scoreless innings. He then made his second straight home start on Saturday versus the Giants and did not factor into a 6-5 loss after yielding two runs over 5 2/3 innings.

Alex White was another starter the Rockies got from the Indians in the Jimenez trade and he took the loss in last night's series opener. He gave up five runs over 4 2/3 innings of a 9-6 defeat.

"Alex wasn't real sharp," Rockies manager Jim Tracy said. "His command tonight was very erratic. He was spraying a lot of pitches tonight."

Wilin Rosario hit a three-run home run while Kevin Kouzmanoff went 3-for-4 with a solo home run, two RBI and two runs scored for the Rockies, who were coming off an 0-7 homestand and could play out the string minus Todd Helton (back) and Carlos Gonzalez (wrist) due to injury.

Carlos Lee drove in four runs and Matt Downs connected on a pinch-hit, three- run double in the seventh inning for the Astros, who had lost five of seven coming in. Henry Sosa earned the win after yielding three runs over 6 1/3 frames.

"He gave up a lot of hits, but he was able to keep them from putting up a big inning," said Houston manager Brad Mills about Sosa. "He's done a really good job for us this entire year."

Even with the win, the Astros secured the first overall pick in next year's draft for the third time in team history after the Twins won their 60th game of the season on Thursday.

Brett Myers takes the hill for Houston tonight seeking a fourth straight victory since a 14-game winless streak (0-7) that began following a win at the Dodgers on June 17. The right-hander has allowed just one earned run in four straight starts, including Sunday at the Cubs.

Myers worked around seven hits and a walk while striking out five over 7 2/3 innings. He was also charged with an unearned run in the 3-2 win, moving to 6-13 with a 4.39 earned run average this year.

The 31-year-old had won his first seven career decisions against the Rockies before a loss to them on Aug. 22. Myers allowed seven runs in five frames of work on that day, giving up six runs in the opening inning. That big stanza featured two-run doubles by Gonzalez and starter Jhoulys Chacin.

Myers' career ERA versus the Rockies is 4.31 in nine games.

The Rockies swept a three-game set at home over the Astros from Aug. 22-24, but Houston has won six of the past eight as the host in this series.