Luis Severino thinks Yankees may have missed lat strain in first testsSeverino mentioned back pain during initial injury4/18/2019, 2:24 AMFeb 17, 2019; Tampa, FL, USA; New York Yankees starting pitcher Luis Severino (40) throws during spring training at George M. Steinbrenner Field. Mandatory Credit: Butch Dill-USA TODAY Sports / Butch Dill