Joe Mantiply, a one-time Detroit Tigers reliever, has been acquired by the New York Yankees from the Cincinnati Reds in exchange for cash considerations according to Yankees PR.
How could the Yankees make a trade after the hard trade deadline on July 31? It was very sneaky by general manager Brian Cashman, but the trade is well within the rules. According to MLB Rule 9(b)(3):
“No Major League Uniform Player’s Contract (including for outrighted players) shall be traded to another Major League Club during the period commencing 4:00 p.m. Eastern Time on July 31 (the ‘Major League Trade Deadline’) and ending upon the day that the last game of the World Series starts.