Reliever R.J. Alvarez, one of the
Alvarez, who combines a fastball that sits in the 97-mph range and occasionally touches 100 mph with a power slider, has not given up a run in 19 innings at double-A Arkansas this season, striking out 28 and walking five.
"He's always had dominant, swing-and-miss stuff," Dipoto said this month. "Now he's combining that with better strike throwing."
Alvarez, a 6-foot-2, 215-pound right-hander who was a third-round pick out of Florida Atlantic University in 2012, appears to be on the fast track to the big leagues. Dipoto said that Alvarez and fellow double-A reliever Cam Bedrosian, both 22, could pitch in the big leagues this season.