Over 30 appearances in 2015, Chamberlain had a 0–2 record and 4.09 ERA. The 29-year-old will leave a bullpen that features Joakim Soria, Alex Wilson and Al Alburquerque.
Chamberlain signed a second consecutive one-year deal with Detroit this past off-season worth approximately $1 million. He was brought back to the team in part, manager Brad Ausmus said, because of his popularity in the clubhouse.
During the 2014 season, Chamberlain started the year well but struggled after the All-Star break, posting a 4.97 ERA in the season’s second half.
Chamberlain is now a free agent. The Tigers are 44–41 with three games to go before the 2015 All-Star Game. They sit seven games back of the Kansas City Royals in the AL Central.