 Former ATP No. 2 tennis player and Olympic silver medalist, Tommy Haas expands Slingers ambassador program to further brand initiatives and company growthBaltimore Maryland--Newsfile Corp. - February 16, 2021 - Slinger Bag Inc. OTCQB: SLBG, a sports brand focused on innovating game improvement technology and equipment, today announced its newest partnership with former ATP No.2 ranked tennis player and Olympic silver medalist, Tommy Haas, who has been brought on as the Chief Ambassador to lead strategic direction in expanding the Companys existing ambassador program. Currently, Slingers brand ambassador program comprises top talent such as Bob and Mike... 