It was cause for concern in April, but then cause for comfort in May. What, then, will the Nationals' bullpen cause in June: Soothing relief or heartburn?
[Updated 8:08 p.m.]
BY PETER HAILEY
The Nationals have recalled left-hander Felipe Rivero from Class AAA, optioning Matt Grace to Syracuse to address a bullpen that was overworked and ineffective during this weekend's sweep in Cinci
Bryce Harper is hitting home runs on a regular basis so far for the Nationals in 2015, but even so he reportedly may not participate in July's Home Run Derby in Cincinnati.