Who is Peter O'Brien?

Martin Prado was traded to the New York Yankees, quite literally at the deadline. When word first broke, details were sparse. All that was known is that Prado had been traded to New York for a catching prospect. Many of us were holding out slim hope that word was coming that the Diamondbacks had somehow stolen Gary Sanchez from the Yankees. Alas, that was not the case.

The final return for the Arizona Diamondbacks is slugging catching prospect Peter O'Brien and a PTBNL or cash considerations in exchange for Martin Prado, with the Yankees taking on 100% of Prado's contract.

The moves of Parra and Prado depleted the 25-man squad and as a result Reno third baseman Andy Marte is on his way to Phoenix along with Roger Kieschnick. Jordan Pacheco is slated to start at third base tonight.

So who is Peter O'Brien?

Well, O'Brien was the Yankees #23 according to Baseball America after the end of the 2013 season. Here's what they had to say:

He has plenty of strength in his 6-foot-5, 225-pound frame and doesn't have to pull the ball to hit it over the fence. He has good balance and the requisite arm strength to catch. At his size, though, O'Brien lacks agility and struggles to block balls in the dirt. Some scouts think he can hit enough to survive as a below-average receiver with inconstant throwing accuracy.

In January, this is what Bronx Baseball Daily had to say about their slugging prospect.

In May, Fangraphs had this to say about the young prospect.

Accounts from all over seem to agree that O'Brien may find it very difficult to stick behind the plate. One has to believe though, that given the presence of Paul Goldshmidt at first base and no DH in the NL, that O'Brien will be given every opportunity to prove he can play up defensively well enough to stick behind the plate. Though it hasn't been announced yet, it's fairly likely that O'Brien will begin his time in the Diamondback organization in AA-Mobile.