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The Twins have parted ways with Lanning Tucker, who spent the past five seasons on the major league staff as an assistant athletic trainer and rehab coordinator.

Tucker announced his departure in a tweet on Friday evening.

"Informed I will not be back with the @Twins," he wrote (@lanningtucker). "Still numb but count my blessings that I was part of the Twins family for 26 years!"

Tucker, 50, had been with the Twins since 1992. From 1999 to 2012, he was the head minor league athletic trainer and rehab coordinator. Most Twins players recovering from surgeries were sent to Fort Myers, Fla., to work with him.

Like many areas of the organization since Chief Baseball Officer Derek Falvey took over a year ago, the training staff in undergoing changes. In addition to Tucker's departure, head athletic trainer Dave Pruemer stepped down at the end of the season for family reasons. Assistant trainer Tony Leo will be the only one of the group to return in 2018.

The Twins also have made changes to their minor league training staff.