For that trait, Wolters can thank his mother.
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"My mom's name is Debbie, and my dad's name is Kelly. My parents were always there at all my games. They both were in banking, so they had their nights off where they can both see me play baseball. The picture here is from when I was 11, with the Rancho Buena Vista Little League All-Stars.
"My mom was a cheerleader and played tennis -- tennis was her big sport.
"My mom is very competitive. That's where I get my competitiveness from. I saw it when we played ping-pong. I beat her, she'd get pretty mad. But I've never played her in tennis."
Thomas Harding has covered the Rockies since 2000, and for MLB.com since 2002. Follow him on Twitter @harding_at_mlb, and like his Facebook page. This story was not subject to the approval of Major League Baseball or its clubs.