Kolten Wong and the St. Louis Cardinals have agreed upon a five-year extension, buying out his arbitration years and one season of free agency.

Wong, 25, is a career .250 hitter who became one of the best-fielding second basemen in the National League last season. 

The contract, which will pay Wong $25.5 million, according to a source, also has a $12.5 million team option for 2021. 

"My whole plan was I wanted to be part of this team. I wanted to get engulfed with the community and just be part of St. Louis," Wong said. "Now, with this deal, I get to be part of the community."