Gregory Polanco, the Pirates' longest-tenured player and their last link to the 2014 and 2015 teams, has been designated for assignment.
The club announced the move Saturday afternoon, saying that Cole Tucker would be recalled from Class AAA Indianapolis to take his spot on the roster.
"Gregory has been a true professional throughout his entire Pirates career, including in our conversation with him regarding today’s roster move," Ben Cherington said in the team statement. "He has been a great teammate who always handled himself with class and took a great deal of pride in representing the Pirates and the city of Pittsburgh.