Colvin determined to build on bounce-back '12

SCOTTSDALE, Ariz. -- Tyler Colvin joined the Rockies last year with the task of proving he was a Major League player. The Cubs, after all, had sent him to the Minors for a good portion of 2011 and unceremoniously traded him during the winter.

Colvin reestablished his career by hitting .290 with 18 home runs and 72 RBIs for the Rockies while playing all three outfield positions and first base. The production earned him a one-year, $2.275 million contract in his first year of arbitration.

But Colvin, 27, who had a strong rookie year with the Cubs before struggling through 2011, realizes he's still at the proving stage of his career.

"We've got a whole new staff and everybody has to see what I can do," Colvin said. "I'm going to get ready for the season, and whatever happens, happens.

"Every year you have to prove yourself. Just to have that bounce-back year is good, just to know I can get back to where I should be, go back to the right approach and the right mindset at the plate. From there, it's just having good at-bats. It really worked out for me."