--RHP Max Scherzer allowed two runs (one earned) in 4 2/3 innings Thursday during a rehab start for Class A Visalia. He allowed one hit and four walks while striking out five. Scherzer, on the disabled list due to shoulder stiffness, is expected to start for Arizona on Tuesday.

--OF Justin Upton, who did not start opening day, started and batted eighth in the second and third games of the season. He is 0-for-5 with three strikeouts and a walk but is not concerned, saying, "I feel comfortable at the plate." Upton hit .197 with no homers and 11 RBIs in 61 at-bats in spring training.

--RHP Tom Gordon, on the disabled list after elbow surgery last August, is scheduled to throw to hitters for the first time this spring Friday in a pregame session at Chase Field. Gordon, expected to provide relief to a bullpen that gave up nine runs (seven earned) in 11 innings to Colorado, appears to be ahead of schedule and could be activated by May 1.

--The D-backs have started three first basemen in three games -- Tony Clark, Chad Tracy and Conor Jackson. Jackson opened last season at first base but became the starting left fielder at the midway point when OF Eric Byrnes was lost for the season because of hamstring injuries. Jackson is the starting left fielder this year. He played three games at first in spring training but "had plenty of fundamental practice and plenty of early work. He's got a lot of reps in at first," manager Bob Melvin said. Jackson made a remarkable stretch to save an out on a wide throw in the fourth inning Wednesday.

MEDICAL WATCH:

RHP Brandon Webb (right shoulder stiffness) was scratched from his April 11 start. He was to visit the team doctor before a determination was made on when he might return.

RHP Max Scherzer (shoulder stiffness) went on the 15-day disabled list retroactive to March 27. He made a rehab start for Class A Visalia on April 9, and he is expected to make his first big-league start of the season April 14.

RHP Tom Gordon (right elbow surgery in October 2008) went on the 15-day disabled list retroactive to March 27. He will throw to hitters for the first time on April 10, and he could return to action by May 1.

ROTATION:

1. RHP Brandon Webb

2. RHP Dan Haren

3. LHP Doug Davis

4. RHP Jon Garland

BULLPEN:

RHP Chad Qualls (closer)

RHP Tony Pena

RHP Jon Rauch

LHP Scott Schoeneweis

RHP Juan Gutierrez

RHP Yusmeiro Petit

RHP Billy Buckner

LHP Doug Slaten

LINEUP:

1. 2B Felipe Lopez

2. CF Chris Young

3. SS Stephen Drew

4. LF Conor Jackson

5. RF Justin Upton

6. 1B Chad Tracy

7. 3B Mark Reynolds

8. C Chris Snyder

RESERVES:

C Miguel Montero

1B Tony Clark

INF Augie Ojeda

OF Eric Byrnes

INF/OF Ryan Roberts