Bradfield will be held out of the lineup at Triple-A Norfolk on Thursday due to right adductor tightness, Matt Weyrich of The Baltimore Sun reports.
He's being considered day-to-day, but at this stage of the season there's a good chance the injury ends Bradfield's season. If that's the case, he'll finish with a .265/.350/.353 batting line, three home runs and 33 stolen bases over 85 games with Norfolk.