CHICAGO - Kerry Wood will have a bone scan today after he cut short a live batting practice session Sunday when he felt more discomfort in his right triceps.
The Cubs right-hander was put on the disabled list last week, retroactive to May 12, and hoped to come off and pitch Friday in Pittsburgh.
He left a start against the Dodgers on May 11 after two innings because of soreness in the triceps and has missed two starts since.
Wood warmed up in the bullpen Sunday and then went to the regular mound at Wrigley Field. But the batting practice session against real hitters lasted just eight pitches.
In other injured-Cubs-pitcher news, right-hander Mark Prior will have his second rehab outing Tuesday, pitching for Class A Lansing, Mich.
ATHLETICS: Third baseman Eric Chavez got his first day off this year. He was the only player to start all 42 games.
BLUE JAYS: Second baseman Orlando Hudson re-aggravated his left hamstring running to first, but he might miss just one day. ... Outfielder Frank Catalanotto (right groin) remains day to day after missing his fourth consecutive start. ... Left-hander Ted Lilly (bruised left shin) is day to day.
BRAVES: First baseman Julio Franco moved into a tie for 100th place on the career hit list with Brett Butler at 2,376.
DIAMONDBACKS: First baseman Richie Sexson (injured left shoulder) was placed back on the 15-day disabled list after reaggravating the injury on a check swing Saturday.
MARINERS: Rightfielder Ichiro Suzuki has reached base in 22 straight games.
MARLINS: Right-hander A.J. Burnett passed another test in his comeback from reconstructive elbow surgery. Pitching for Class A Jupiter of the Florida State League, Burnett allowed two hits and one unearned run in four innings during a rehabilitation start in Viera. He could be back in Florida's rotation by June 2. ... Left-hander Darren Oliver (2-2, 7.94 ERA) was removed from the rotation. Left-hander Tommy Phelps (3.00 ERA in 14 relief appearances) will start Wednesday.
METS: Right-hander Grant Roberts is scheduled for arthroscopic surgery on his right shoulder Tuesday.
PHILLIES: Left-hander Randy Wolf (sore left elbow) is scheduled to make his next start Friday against Atlanta. ... Right-hander Elizardo Ramirez was recalled from Class A Clearwater and Josh Hancock optioned back to Triple-A Scranton/Wilkes-Barre.
PIRATES: The team is interested in signing injured free-agent third baseman Aaron Boone. "It's something that's really more of an exploratory situation at this point," GM David Littlefield said.
RED SOX: Third baseman Bill Mueller (right knee) wanted a second opinion, so he flew to Arizona to meet with the same doctor who performed surgery on his left knee in March 2002.
ROCKIES: First baseman Todd Helton (back) was out of the lineup for the third straight game, the first time he's missed three straight starts since 1998.
WHITE SOX: Willie Harris (bruised left ankle) pinch hit after missing three games.