RHP Tom Gordon (elbow) is expected to be activated from the disabled list Monday, at which point another roster move will be made.

PLAYER NEWS:

--2B Felipe Lopez, the D-backs' leading hitter with a .311 batting average, was given his first day off of the season Monday, when OF Chris Young moved into the leadoff role. Lopez, who has seven doubles and two home runs, was the last D-backs regular to get a day off.. "From the very start of spring training he's fit in here very well as a person. (He's a) very likable guy, a talented guy," manager Bob Melvin said in his media briefing before the game.

--RHP Tom Gordon (elbow) was activated from the disabled list Monday to boost a bullpen that has a 5.31 ERA, which ranks 14th in the National League. Gordon, 41, is expected to join RHP Tony Pena as a principal setup man for closer RHP Chad Qualls. Gordon, who made four appearances in rehab games/extended spring training games, last pitched in a major-league game on July 6, 2008, with Philadelphia before missing the rest of the season with an elbow injury that required October surgery to remove bone chips and reposition his ulnar nerve.

--RHP Bobby Korecky was optioned to Class AAA Reno to make room for Tom Gordon, keeping the bullpen at seven arms. Korecky was 0-0 with a 6.75 ERA in four appearances since being recalled from Reno on April 13. He was acquired off waivers from Minnesota early in spring training.

--RHP Esmerling Vasquez made his major-league debut with an inning of scoreless relief Sunday. Vasquez, 25, gave up two hits but picked a runner off first base to avoid any damage. He was a top prospect as a starter in 2007, going 10-6 with a 2.99 ERA at Class AA Mobile, but suffered a shoulder injury in the Arizona Fall League that fall and pitched mostly out of the bullpen in the second half of 2008 at Class AAA Tucson.

MEDICAL WATCH:

OF Conor Jackson (illness) missed the April 24 game. He appeared as a pinch hitter April 25.

SS Stephen Drew (left hamstring strain) went on the 15-day disabled list retroactive to April 25.

RHP Brandon Webb (right shoulder bursitis) went on the 15-day disabled list retroactive to April 7. He threw a bullpen session April 21 but missed a session April 24 and was shut down. Webb is likely out until June.

ROTATION:

RHP Dan Haren

LHP Doug Davis

RHP Jon Garland

RHP Max Scherzer

RHP Yusmeiro Petit

BULLPEN:

RHP Chad Qualls (closer)

RHP Tom Gordon

RHP Tony Pena

RHP Jon Rauch

LHP Scott Schoeneweis

RHP Juan Gutierrez

RHP Esmerling Vasquez

CATCHERS:

Chris Snyder

Miguel Montero

INFIELDERS:

1B Chad Tracy

2B Felipe Lopez

SS Augie Ojeda

3B Mark Reynolds

INF Tony Clark

INF/OF Ryan Roberts

INF Josh Wilson

OUTFIELDERS:

LF Conor Jackson

CF Chris Young

RF Justin Upton

OF Eric Byrnes