Game 5 of Seattle's Cactus League schedule has been rained out, so tomorrow's split-squad games will come in handy for the pitchers supposed to work today.
Ryan Rowland-Smith, for instance, will now start against the White Sox, Doug Fister against the Brewers as the Mariners play two games in a day.
Manager Don Wakamatsu will take the Milwaukee game, bench coach Ty Van Burkleo the Chicago contest - both being played on the road.
Most everyone on the roster will have a chance to get into the action, though a few players - including Ken Griffey Jr. - will stay back in Peoria for extra work.
Rookie catcher Steven Baron, the 19-year-old who this time last year was playing high school baseball, will be behind the plate in one game.
"I imagine he'll have trouble breathing for a few minutes," Wakamatsu said.
The rainout also gives players battling minor injuries an extra day of physical therapy and rest. That list includes Franklin Gutierrez (shoulder), Jack Wilson (hamstring), David Aardsma (groin) and Rob Johnson (hips).
Johnson won't play before the middle of the week as the team continues to work him on the fields rather than in the games.