Justin Morneau gets $13 million over two years from Rockies to replace Todd Helton

Perhaps capping a wild day of offseason trades and free-agent signings, the Colorado Rockies have agreed to terms with free-agent first baseman Justin Morneau to fill the shoes of recently retired team hero Todd Helton.

The Rockies had been chasing Morneau for a few weeks. Troy Renck of the Denver Post first reported the two sides were close, then CBS Sports' Jon Heyman confirmed it was a done deal Tuesday night.

The Rockies traded center fielder Dexter Fowler earlier in the day. His $7.5 million salary coming off the books freed up some room for the Rockies to make a deal.

Morneau, 32, was the third best first baseman available, according Yahoo Sports' Jeff Passan's free-agent tracker. He ranked behind Mike Napoli and Kendrys Morales.

The back of Morneau's baseball card reads better than those two — he's a former AL MVP who hit 34 homers and drove in 130 runs in 2006 — but his career has been substantially derailed by concussions.

He played in only 150 games in 2010 and 2011 combined. In 2012, he played in 134 games but hit only .267/.333/.440 with 19 homers. Last season, he was dealt from the Minnesota Twins, the team that drafted him, to the Pittsburgh Pirates midseason. He hit .259 total in 2013 with 17 homers and 77 RBIs. Sure, there's a chance Morneau finds his groove again (certainly playing in Coors Field will help). But there's just as good of a chance that Morneau's best days are completely behind him.

All that is to say Morneau will not be the team cornerstone that Helton was, but for $13 million, he may end up being a valued addition.

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Mike Oz is an editor for Big League Stew on Yahoo Sports. Have a tip? Email him at mikeozstew@yahoo.com or follow him on Twitter!