"The Rangers are certainly disappointed in Jeremy's actions of early this morning," Daniels said. "We have been in touch with Jeremy's representatives and Major League Baseball, and are continuing to work through this situation and gather more information.
"I think this was one individual making a poor decision. I don't think it reflects on the other guys in that clubhouse."
Daniels said he expects to have Jeffress back for Saturday's game. Daniels anticipates that investigations from Major League Baseball and local law enforcement could take some time and that Jeffress will play during the investigations. The Rangers recalled left-hander Dario Alvarez from Triple-A Round Rock to replace Jeffress on the roster for Friday.
Jeffress, 28, and catcher Jonathan Lucroy were acquired from the Brewers on Aug. 1. The right-handed reliever has made nine appearances with the Rangers, allowing four runs through nine innings with six strikeouts. Daniels was able to reach Jeffress over the phone following the arrest.
"I don't want to put words in his mouth, and obviously he'll address the media, address the fans and address his teammates," Daniels said, "but I think it's very safe to say he was embarrassed and apologetic for what happened."
Rangers manager Jeff Banister didn't want to comment on the situation until he had a chance to speak with Jeffress in person. He declined to reveal if he had talked to Jeffress on the phone.
"There's still due process, not only with law enforcement but also with Major League Baseball," Banister said. "Until all information is gathered and I've had a chance to talk to Jeremy, I'd expect my reaction, my opinion and my thoughts would stay just at that. I know what I know right now, and when the time is appropriate, I'll comment on the rest."
Daniels said he was unsure if the incident would fall under the Major League Baseball Drug
Prevention and Treatment Program. Jeffress violated the Minor League Drug Prevention Program three times for marijuana use, including suspensions in 2007 and '09.
"I know he fights some stuff on the personal level," said Lucroy, who came up with Jeffress in the Brewers' organization. "Whenever you're dealing with stuff in your personal life like that, that becomes way more important than the game. And we have to help him get through whatever he's trying to get through, to help him be OK in life, because that's really more important."
From the Rangers' standpoint, they are looking to gather more information before they decide on what actions to take as a club.
"Everything depends on the specific circumstances," Daniels said. "I don't want to broad stroke it with anything. It really depends on everything else that plays into it, and we're still in the process of gathering that information."
Though the Rangers expressed their displeasure with Jeffress over the incident, Daniels didn't want to minimize the fact that nobody was hurt and he was thankful for that.
"There's never a good time for something like this," Daniels said. "I don't even want to put it into baseball terms. I'm more concerned now in trying to get our arms around the situation and look at the real-life element first, baseball second."