Fox played for the Atlanta Braves, Milwaukee Brewers, Boston Red Sox, Florida Marlins, and the Chicago Cubs.

He is also known for his injuries that have set him back in his career, undergoing Tommy John surgery twice, including having been injured in the 2004 and 2005 seasons.

Fox would face rehab stints in 2002 with the Brewers and 2003 with the Red Sox, though he managed to stay healthy after signing with the Florida Marlins in August 2003, posting a 2.13 ERA in 21 appearances and adding nine more outings in the postseason to help them to a World Series title.

[2] On January 11, 2008, he signed a one-year minor league deal with the Chicago Cubs hoping to make a comeback.

Fox opted to rest rather than undergo another surgery on his elbow, but was ultimately transferred to the 60-day disabled list on September 2, ending his season.