Yankees exercise 2021 option on skipper Aaron BooneBoone has been the Yankees' manager since 201811/24/2020, 4:11 AMCoby GreenFreelance Editorial ProducerSep 25, 2020; Bronx, New York, USA; New York Yankees manager Aaron Boone argues with home plate umpire John Tumpane (74) during the first inning against the Miami Marlins at Yankee Stadium. Mandatory Credit: Brad Penner-USA TODAY Sports / © Brad Penner-USA TODAY Sports