(Charlie Riedel/AP)

The Nationals drafted Meyer, a 6-foot-9 right-hander out of Kentucky whose fastball reaches the upper 90s, with the 23rd overall pick in the 2011 draft. This season at Hagerstown, he has a 3.10 ERA in 90 over 18 starts, striking out 107 and walking 34. In his last 10 starts, Meyer has a 1.92 ERA with 63 strikeouts and 17 walks in 51 2/3 innings.

Last week, Meyer dominated in a brief outing at the Futures Game. He retired both batters he faced with six pitches, throwing his fastball 99 miles per hour and showcasing his changeup and wipeout slider as well.

On Friday, Potomac will host Myrle Beach at Pfitzner Stadium.