PHOENIX -- Several ailing Rockies players are making progress and making their way back to the field.
Infielder Jonathan Herrera, who is on the disabled list because of an infection in his left wrist, will work out with Triple-A Colorado Springs in Reno on Thursday and play on Friday. Pitcher Jorge De La Rosa, who is recovering from Tommy John surgery following a season-ending injury to his left elbow in May 2011, is throwing on flat ground consistently, maxing out at 140 feet. Rockies manager Jim Tracy said the lefty is not close to pitching from a mound.
Shortstop Troy Tulowitzki, who had groin surgery last month, is hitting off a tee, throwing and participating in a running program.
"I was asked yesterday if I have information from a timetable standpoint," Tracy said. "I have none for you."
Jhoulys Chacin, who has been on the DL since May 2 with inflammation in his right shoulder, will throw a bullpen session on Thursday. The session will simulate a game situation with rest between innings.
"Hopefully, during the course of a few of those pitches in each of those innings that he will throw, he will get to a point where he is ready to turn it loose and see where he stands," Tracy said. "In fact, if that turns out OK, we will looking into moving him along and getting him moving forward to a rehab."
Chris Nelson, on the DL with an irregular heartbeat, has been resting and Tracy said the club hopes to increase his activity level when he is cleared.