According to Matt Eddy of Baseball America, Bush has opted to return to Major League Baseball and sign with the Toronto Blue Jays. There are no details as to the contract yet, but it is believed to be a minor league deal with an invitation to spring training.
The 33-year-old Bush was originally drafted by the Blue Jays in the second round of the 2002 amateur draft. In 8 major league seasons, Bush owns a 56-69 record with a 4.70 ERA and 6.0 K/9 ratio.
Bush struggled during his two seasons in Toronto, but was best known for his disagreement with then manager John Gibbons. On May 28, 2005, Bush was displeased with being removed from a ballgame and got into a verbal dispute with Gibbons in the dugout. He was sent to Triple-A following the game. Bush was traded that following winter, along with Gabe Gross and Zach Jackson, to the Milwaukee Brewers for Lyle Overbay and Ty Taubenheim.
In addition to Toronto and Milwaukee, Bush has pitched in the majors for the Texas Rangers, and in the minor leagues for the Chicago Cubs and Philadelphia Phillies. He spent 2012 pitching for SK Wyvern of the Korean Professional Baseball league.