Koronka was selected by the Cincinnati Reds in the 12th round of the 1998 MLB Draft. While playing in the Reds farm system with the Stockton Ports in 2002, he was named to the California League All-Star team. On December 16, 2002 he was selected by the Texas Rangers in the Rule 5 Draft but did not make the Rangers opening day roster and was returned to the Reds on March 21, 2003.\n', '

Koronka was traded by the Reds to the Chicago Cubs on August 26, 2003 for Phil Norton. He made his major league debut for the Cubs on June 1, 2005 against the Los Angeles Dodgers and gave up 3 runs over 5 innings, walked 3, and struck out 5 for the win.\n', '

On March 31, 2006, Koronka was traded to the Texas Rangers for Freddie Bynum, whom the Rangers had just acquired from the Oakland Athletics. Koronka started 23 games for the Rangers in 2006, going 7-7 with a 5.69 ERA. He was expected to compete for a spot on the rotation in 2007, but failed to make the Rangers\' big league roster. He was optioned to the Triple-A Oklahoma RedHawks prior to the start of the 2007 season.\n', '

Return to John Koronka Autograph Profile