PITTSBURGH -- The position title next to Wilkin Castillo's name says "catcher," but it's the other skills that made him even more attractive to the Reds front office.

Castillo was revealed Thursday as one of the players to be named that was acquired from the Diamondbacks for Adam Dunn on Monday. The 24-year-old batted .254 with six home runs and 47 RBIs this season for Triple-A Tucson.

Of the 104 games Castillo played in 2008, 51 were at catcher and 41 were at third base. Another 17 games were played at second base, shortstop or the outfield. Arizona's depth at catcher made it possible for him to be used elsewhere, Reds general manager Walt Jocketty said.

"He was a guy we looked at as being very versatile with a strong arm," Jocketty said. "We think he is a guy that would be very valuable for [manager] Dusty [Baker] because he can play many positions and run well."

Castillo was assigned to Triple-A Louisville and will most likely be a September callup. In five Minor League seasons, he was a .281 hitter with a .322 on-base percentage.

"I think when it comes to his role, we'll evaluate him more when we bring him up and determine how we'll use him," Jocketty said.

If the Reds do use him as a catcher, Castillo will provide some depth. Paul Bako and Javier Valentin are both potential free agents at season's end and the club is still seeing what it has with rookie callup Ryan Hanigan.

Minor League pitcher Dallas Buck was already acquired and assigned to Class A Sarasota. There has been rampant speculation that pitcher Micah Owings is the other player, but Jocketty would not address that issue.

Owings, like Castillo already did, must first clear waivers before the trade can be completed. Owings missed his scheduled start on Wednesday for Tucson with what's been reported as a sore right shoulder.

By rule, players that are injured are not allowed to be placed on waivers, which is likely why the Owings part of the trade has been held up.

There is no word on when the final piece of the Dunn trade puzzle will fall into place.

"Hopefully, it will in the next couple of weeks, but I can't give an answer on that yet," Jocketty said.