Wright was released by the Pirates on Thursday, Jake Crouse of MLB.com reports.
The Pirates reassigned Wright (elbow) to their minor-league camp Monday.
Wright (elbow) signed a minor-league deal with the Pirates on Sunday, Bob Nightengale of USA Today reports.
Wright will undergo Tommy John surgery on his right elbow, Andersen Pickard of MLBDailyDish.com reports.
Wright (elbow) was released by the Red Sox on Friday.
The Red Sox transferred Wright (toe, elbow) to the 60-day injured list Sunday.
Wright (toe) received a PRP injection in his elbow, Bill Koch of The Providence Journal reports.
Wright (toe) will meet with Dr. James Andrews about an elbow injury, Chris Cotillo of MassLive.com reports.
Wright (toe) is visiting with doctors in Boston on Saturday, Bill Koch of The Providence Journal reports.
Wright (toe) still isn't doing any baseball activities, Guerin Austin of NESN reports.