Dunn said he plans to retire after the 2014 season, Bruce Levine of 670 The Score reports. In waiving his no-trade clause to join the Athletics on Sunday, Dunn will attempt to conclude his career with a World Series ring, which has eluded him in his 14 seasons in the big leagues. While Dunn could have a change of heart with regards to retirement based on how his season ultimately ends, those who own the slugger in keeper leagues may want to prepare to cut ties with him for 2015.