[2] Koskie grew up on a farm in Anola and practiced baseball by hitting rocks with a wiffle ball bat.

An injury-plagued 2005 season cut his productivity and playing time, as he struggled with a .249 average, with 11 home runs, 36 RBI, and 4 stolen bases in 97 games.

][citation needed] On January 6, 2006, he was traded by the Blue Jays to the Milwaukee Brewers for pitcher Brian Wolfe.

With several players on the roster capable of playing third base (Koskie, Glaus, Eric Hinske, Shea Hillenbrand, and Aaron Hill) and no assurances of regular playing time from Blue Jays general manager J.P. Ricciardi, Koskie was traded just a year after being the Blue Jays' 2004 offseason marquee free agent signing.

[citation needed] While the Brewers acquired a veteran infielder with a solid glove and bat to anchor their very young infield, Koskie's later seasons were marred by injuries, including missing most of the 2006 season with post-concussion syndrome from an injury he received on July 5, 2006.

[8] In 2009, Koskie worked out at the Minnesota Twins spring training camp and played for Team Canada in the World Baseball Classic.

[9] On February 28, Koskie signed a minor league deal with an invitation to spring training with the Chicago Cubs.