Catcher Miguel Olivo suffered a strained right groin muscle today and the Mariners sent him for an MRI to determine the seriousness of the injury.
In a largely injury-free spring camp, Olivo was unable to walk on his own and had to be helped off the field by trainer Rick Griffin and manager Eric Wedge after scoring a run.
Olivo, 32, was carted to the clubhouse for medical attention, then sent to a local medical facility.
Signed to be Seattle's starting catcher, Olivo has a two-year $8 million deal with a team option. If he misses significant time and cannot start the season - and groin injuries are particularly tough on catchers - the team would likely rely upon Adam Moore and Josh Bard behind the plate.
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"What I did today won't mean a thing if Miguel's hurt badly," said pitcher Erik Bedard, who worked two scoreless innings.