Gutierrez likely will throw a session of batting practice Saturday afternoon and could return to the active roster as soon as next Wednesday, when his disabled list stint is up.
Gutierrez has been on the DL since Aug. 3 with inflammation in his right shoulder, and the team feels it has been such a short time that he will not need a rehab assignment.
"I don't like to be on the DL," Gutierrez said. "It's so boring. It's hard to be on the DL and not do anything."
Gutierrez said he was told that the problem with his shoulder could have been caused by sleeping on it wrong. He said just before he began to feel the discomfort pitching, he woke up in the morning and could not move his arm.
To combat the problem, Gutierrez now sleeps on his left side, which took some getting used to for him.
Rosales, who has been on the disabled list since April 29 with an injured right ankle, threw a simulated game Wednesday in Milwaukee and will head out on a rehab assignment Monday.
"It's about time," said Rosales about getting out on his rehab assignment. "It's been a long time, it was worrying me a little bit. It's feels good now, my arm feels great. The training staff got me ready, they're great."
Rosales said he is scheduled to throw an inning or around 25-30 pitches on Tuesday, and he will probably spend a couple of weeks with Triple-A Reno before he's ready to return.
"Hopefully I can put up a good September and we'll take it from there," Rosales said.