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.
Yankees prospect catcher Peter O'Brien went 2-for-4 with his 23rd home run of the season for Double-A Trenton on Saturday.
Yankees catching prospect went 1-for-4 with his minor-league leading 19th home run for Double-A Trenton on Wednesday.
Yankees prospect C Peter O'Brien continued to swing a hot bat on Monday for Double-A Trenton, as he was 2-for-4 with a double, home run and four RBI.
Yankees catching prospect Peter O'Brien went 2-for-4 with a home run for Double-A Trenton on Wednesday.