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Peter
O'Brien
Right Fielder
Birthdate
7/15/1990
BAT/THR
Right/Right
Birthplace
Miami Gardens, FL
College
Miami
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Royals
MLB
Royals call up relievers Maness, Alburquerque
9Y
Steven King/Icon Sportswire
MLB
D-backs trade O'Brien to Royals for minor leaguer
10Y
Christian Petersen/Getty Images
Diamondbacks
MLB
Diamondbacks recall OF O'Brien from Reno
10Y
Christian Petersen/Getty Images
Diamondbacks
MLB
MLB
Previewing the next wave of prospect call-ups
11Y
Jim Bowden
Getty Images
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MLB News
What will be the Dodgers' trade deadline approach?
What will be the Dodgers' trade deadline approach?
Shohei Ohtani's 2025 Tokyo series cleats up for auction
The cleats are signed in Ohtani's rarely seen Kanji signature and include his dog -- Decoy -- on its heels.
Can any 2026 Home Run Derby entrants join list of memorable performances?
Vladimir Guerrero Jr. and Joc Pederson's duel in the 2019 edition of the Home Run Derby headlines some of the event's most memorable moments.
Betting the 2026 Home Run Derby: Odds, analysis and predictions
Will Junior Caminero take home the trophy or will someone else steal the show? Here are the odds and a breakdown of the field.
2026 MLB Home Run Derby: Breaking down the contestants
What you need to know about this year's hitters -- and the coaches and fathers they chose for their big moment.
MLB Home Run Derby 2026: Predictions, live updates, takeaways
Ready to watch sluggers swing for the fences? We have your one-stop shop for the most power-packed day of the baseball calendar.