Manager Craig Albernaz said Alexander was diagnosed with a non-displaced fracture in his left hand after being hit by a pitch in Sunday's game against the Royals, Matt Weyrich of The Baltimore Sun reports.
Alexander went 2-for-2 with a walk and two runs scored before being plunked in the bottom of the seventh inning and being replaced by a pinch runner. It's a brutal development for the 27-year-old, who is now likely to miss at least the next couple weeks after batting .365 (35-for-96) with 10 extra-base hits, three steals, 15 RBI and 16 runs in 32 games since the start of June.