The Diamondbacks confirmed Sunday that prospect Peter O'Brien has switched to the outfield full-time.
Diamondbacks prospect C/OF Peter O’Brien went 3-for-4 with a home run and double on Monday for Triple-A Reno.
Diamondbacks manager Chip Hale said Tuesday that prospect Peter O'Brien will continue to play the outfield at Triple-A Reno for the next month or so.
Diamondbacks catching prospect Peter O'Brien played the outfield in a minor league game for the second straight day Thursday.
Diamondbacks reassigned C Peter O'Brien, INFs Danny Worth, Nick Evans, Danny Dorn and Jamie Romak and RHPs Jake Barrett and J.C. Ramirez to minor league camp.
Diamondbacks catching prospect Peter O'Brien is struggling with his return throws to pitchers.
Diamondbacks manager Chip Hale said Saturday of Peter O'Brien that he's "seen nothing that shows he can't be a frontline catcher in the big leagues."
Peter O'Brien went 2-for-3 with an RBI single in a win over the Rockies Wednesday.
According to MLB.com's Steve Gilbert, Peter O'Brien's batting practice sessions have become must-see events for players and executives in Diamondbacks camp.
Diamondbacks general manager Dave Stewart said Tuesday that the club views prospect Peter O'Brien as their catcher of the future.
Diamondbacks acquire C Peter O’Brien and either a player to be named later or cash from the Yankees for 3B Martin Prado.
Yankees prospect catcher went 3-for-4 with a double and two home runs for Double-A Trenton on Wednesday.
Yankees prospect Peter O'Brien went 2-for-3 with two home runs, a walk, and a hit by pitch for Double-A Trenton on Monday.
Yankees catching prospect Peter O'Brien went 2-for-4 with two home runs for Double-A Trenton, raising his season line to .266/.308/.602.