"Once you cross those lines, it's totally different," Myers said. "It's a different world [on the baseball field]."
Off the field, Myers will have to deal with an upcoming court hearing, which is scheduled for Aug. 4.
The team's ace was arrested early Friday and charged with assaulting his wife, the former Kim Wickman. She and two witnesses told police that the pitcher struck her, according to the police report. The couple argued at about 12:20 a.m. ET at the corner of Boylston and Dalton streets, David Procopio, a spokesman for the Suffolk County District Attorney's office, said in a statement.
"The evidence at this point leads us to believe the victim was struck in the left side of her face," Procopio told The Associated Press.
"At this point, it's a sensitive issue, and we take it very seriously," general manager Pat Gillick said. "Again, we offer whatever support we can for he and his wife. Whatever needs they might have, the Phillies are here to support not only Brett and Kim, but any of our players."
Gillick and manager Charlie Manuel declined to comment on the issue's specifics, or on any disciplinary action, until the matter was resolved.
Myers was charged with domestic assault and battery, according to the police report. He was released on $200 bail -- posted by his wife -- and arraigned Friday morning in Boston Municipal Court, where he pleaded not guilty. His next court date is scheduled for Aug. 4, though Myers doesn't have to appear.
He can have no contact with his wife unless she wishes, and he can be sent to jail for up to 60 days if he's arrested while out on bail. The couple has two children, 3-year-old Kylie and 1-year-old Kolt.
"I think these things have a way of working themselves out," Manuel said.
The Phillies hope so. Manuel and Gillick met with Myers on Friday morning, and decided it was best for him to start Saturday's game, for himself and the team.
"I think getting back on the mound will be good for him," Manuel said. "I think he's ready. I don't think this is going to be a big distraction at all for him."
Added Gillick: "I think he'll be fine and it's in the best interests of the club that he pitches [Saturday]. I don't think there was much thought about skipping him."
Myers, a first-round pick in the June 1999 First-Year Player Draft, is 5-3 with a 3.77 ERA, and has been Philadelphia's best starter this season. He's coming off an outing in which he struck out 11 Yankees to outduel Randy Johnson.
Pitching coach Rich Dubee isn't concerned about Myers' ability to focus on the field.
"Knowing the competitor he is, I'm sure he'll be able to keep his focus," Dubee said.
"He's the type of guy who, when he gets between the stripes on the field, I think he'll certainly be competitive," Gillick said. "One of the things with Brett is sometimes he's a little too competitive and overthrows a little bit. I think he might be a little emotional tomorrow."
Most of the teammates who heard about the arrest declined to comment, though they voiced support.
"It's a personal problem," Bobby Abreu said. "He has to get his mind ready for tomorrow. You have to. Sometimes, it's tough, but that's the only way."