Three Orioles minor leaguers were promoted from Low-A Delmarva to High-A Frederick on Thursday after a successful first half of the season that ended with a spot in the South Atlantic League All-Star Game on Tuesday.
First baseman Trey Mancini, outfielder Mike Yastrzemski and right-hander Jimmy Yacabonis, who all were selected by the Orioles in baseball's first-year player draft last June, will start the second half with the Keys.
Mancini, the club’s eighth-round pick last year, had a .317 average, 13 doubles and 42 RBIs in 68 games with the Shorebirds. Drafted out of Notre Dame, the 22-year-old batted .373 in May. Last year, he hit .328 with short-season Single-A Aberdeen.
Yastrzemski, 23, enjoyed a similarly productive first half at the plate with Delmarva. The Orioles' 14th-round selection in 2013, he batted .306 with 10 home runs, 44 RBIs and 12 stolen bases in 63 games for the Shorebirds in the first half. His grandfather, Carl Yastrzemski, had a Hall of Fame career as a left fielder for the Boston Red Sox.
Yacabonis, 22, made 21 relief appearances for Delmarva, leading the South Atlantic League with 14 saves. The club's 13th-round pick last year, he surrendered just three runs in 25 1/3 innings (1.07 ERA) and struck out 31 batters for the Shorebirds. Yacabonis started the season with 19 straight scoreless appearances before giving up all three runs against Hickory on June 10.
To make room for the three promoted players, outfielder Lucas Herbst and first baseman Creede Simpson were transferred from Frederick to Delmarva.