DETROIT, MI - APRIL 05: Detroit Tigers manager Jim Leyland #10 and Boston Red Sox Manager Bobby Valentine #25 exchange handshakes at home plate prior to the start of the game against the Detroit Tigers at Comerica Park on April 5, 2012 in Detroit, Michigan. (Photo by Leon Halip/Getty Images)
DETROIT, MI - APRIL 05: Detroit Tigers manager Jim Leyland #10 and Boston Red Sox Manager Bobby Valentine #25 exchange handshakes at home plate prior to the start of the game against the Detroit Tigers at Comerica Park on April 5, 2012 in Detroit, Michigan. (Photo by Leon Halip/Getty Images)