Aaron Boone hints Yankees might take action on Yusei Kikuchi's pine tar use"We looked at it and have some thoughts about it..."5/9/2019, 9:48 PMApr 7, 2019; Baltimore, MD, USA; New York Yankees manager Aaron Boone (17) walks onto the field during the ninth inning against the Baltimore Orioles at Oriole Park at Camden Yards. Mandatory Credit: Tommy Gilligan-USA TODAY Sports / Tommy Gilligan