PHOENIX -- The Diamondbacks got a couple steps closer to finalizing their Opening Day roster Friday night, optioning outfielder Tony Campana and left-handed reliever Joe Paterson to Triple-A Reno.
Paterson had a strong spring after struggling early in 2012 and spending most of the year in Reno. He pitched 10 23 innings and compiled a 1.69 ERA, but the second left-handed relief spot will go to Matt Reynolds, who had a rough spring (8.74 ERA in 11 13 innings) after coming to the D-backs in a trade from the Rockies.
"Joe threw the ball well," D-backs general manager Kevin Towers said. "I thought he threw the ball this spring more like he did in 2011. ... He'll go down there and he's a professional, and he'll be ready."
Campana's assignment to Reno opens the door for minor league outfielder Alfredo Marte to make the Opening Day roster amid injuries to Cody Ross and Adam Eaton, but Towers said things could still change, so that decision has not been...