Peter O'Brien has told the Diamondbacks that he wants to return to the catcher position.
The Diamondbacks would like Peter O'Brien to return to the catcher position next season.
Making his second career appearance as a pinch-hitter, Peter O'Brien singled in a run in his lone at-bat Saturday.
Diamondbacks purchased the contract OF Peter O'Brien from Triple-A Reno.
Diamondbacks general manager Dave Stewart said Monday that a decision has not been made as to whether prospect Peter O'Brien has given up catching and become a full-time outfielder.
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.