PHOENIX -- Catcher Wilin Rosario returned to the lineup on Tuesday after missing the three previous games because of an ankle injury. He is also scheduled to catch on Wednesday.
"He'll get a chance with Edwar [Cabrera on Tuesday night] and Jeff Francis [Wednesday] and we'll also have a much better barometer as to exactly where he is at with that ankle," Rockies manager Jim Tracy said.
Rosario remains cautiously optimistic.
"I feel great, thanks to God," he said. "I've been working hard and looking forward to getting back out there. We'll see how I feel after the game."
Rosario injured the ankle trying to block a wild pitch against the Padres last Friday.
Giambi placed on disabled list with illness
PHOENIX -- The Rockies placed veteran Jason Giambi on the 15-day disabled list Tuesday with viral syndrome, retroactive to July 21.
The Rockies replaced Giambi, 41, in the roster with left-handed pitcher Edwar Cabrera, who started Tuesday night's game against the D-backs.
"He's just experienced body weakness and things like that," Rockies manager Jim Tracy said of Giambi.
Giambi, who said he has not felt well for three weeks, is hitting .241 with four doubles, one home run, eight RBIs and seven runs in 47 games for the Rockies this year. In 217 games with the Rockies since 2009, he is hitting .251 with 20 doubles, 22 home runs and 86 RBIs.
Giambi is in the final year of a two-year deal he signed with the Rockies before the 2011 season.
Rockies planning visit to shooting victims
PHOENIX -- The Rockies are organizing a trip to Aurora on Thursday to visit the victims and families affected by the shooting at an Aurora movie theater last week.
On Friday, a gunman entered a crowded theater during a midnight showing of the Batman movie, "The Dark Knight Rises," and opened fire, killing 12 and injuring 58.
Aurora is approximately 15 miles from Denver.
"It's very important. In my opinion, it's a small solace that's actually grand in stature," Rockies manager Jim Tracy said. "It's not going to bring those people back, but we just want them to know that last weekend in San Diego that our hearts went out to them and still are."
On Sunday, members of the Denver Broncos visited victims at Medical Center of Aurora. Members of the Denver Nuggets wore black headbands to honor the victims during a Summer League game on Friday.
"When you have something like this take place in a community, you want to see it come together," Tracy said. "To help bring it back together and to be a part of it, is really, really important. It's extremely important."
Rockies pitcher Jhoulys Chacin, who has been on the disabled list since May 2 with inflammation in his right shoulder, will throw a bullpen on Thursday and could be headed out on a rehab assignment soon.
Rockies pitcher Drew Pomeranz, who experienced left arm soreness during his last start on Friday night, will throw a bullpen session on Wednesday and could start Friday against the Reds. He is on track to pitch sometime this weekend.