PHOENIX -- D-backs manager Bob Melvin studies the numbers, so he knows that the Rockies entered play Wednesday having scored the fewest runs in the National League.

He also knows that's likely to change. He's just hoping it doesn't happen this weekend.

The D-backs and Rockies meet for the second time in a week when they open a three-game series at Chase Field on Friday night.

Last weekend at Coors Field, the D-backs swept the Rockies and outscored their rivals by a 20-5 margin.

"They're not scoring a ton of runs and you'd like to see them get hot after they leave here," Melvin said. "They probably weren't really happy about us beating them three in a row there. They're always a dangerous team regardless, they've swung the bat well in this ballpark. So it's definitely quite a bit of work any time they are in town."

It will be a celebratory weekend at Chase Field as the D-backs host a reunion weekend for the 1998 innaugural season club with appearances by manager Buck Showalter, infielders Jay Bell and Travis Lee and catchers Kelly Stinnett, Jorge Fabregas and Damian Miller among others.

The first 35,000 fans entering the gates on Friday will receive a D-backs 10th Anniversary T-shirt, courtesy of Gila River Casinos. Following the game, Gila River Casinos will present a postgame firework show, pending weather.

Pitching matchup
ARI: RHP Brandon Webb (2-0, 2.08 ERA)
Webb put to rest the talk about his lack of success against the Rockies in 2007 when he allowed two runs (one earned) against them last Saturday in Coors Field. He is 2-0 and opened the 2006 season with eight straight wins.

COL: LHP Franklin Morales (0-0, 0.00 ERA)
Morales started the series finale last Sunday against Arizona and did not allow a run in six innings. The lefty did allow two hits and walked three in his first regular-season start against the D-backs. He started Game 4 of the 2007 NLCS against the D-backs, but did not get a decision.

Tidbits
Shortstop Stephen Drew was held out of the lineup Wednesday with a bruised right quad. With Thursday being a scheduled off-day, that means Drew will have a two-day break to allow the injury to heal. ... Second baseman Orlando Hudson has made strides from the right side of the plate and the proof was in the numbers last year, when he hit .281 against lefties and .298 vs. righties. ... Pitcher Dan Haren picked up a couple of wins Monday. The right-hander was credited with the victory in Arizona's 9-3 win and he won the player's NCAA Tournament pool when Kansas beat Memphis.

Tickets
 Buy tickets now to catch the game in person.

On the Internet
 MLB.TV
 Gameday Audio
•  Gameday
•  Official game notes

On television
• FSN-HD

On radio
• KTAR 620, KSUN 1400 (Español)

Up next
• Saturday: Diamondbacks (Dan Haren, 1-0, 3.00) vs. Rockies (Aaron Cook, 0-1, 3.46), 12:55 p.m. MST
• Sunday: Diamondbacks (Edgar Gonzalez, 0-0, 1.80) vs. Rockies (Ubaldo Jimenez, 1-1, 4.91), 1:10 p.m. MST
• Monday: Diamondbacks (Randy Johnson, first appearance) at Giants (TBD), 7:15 p.m. MST