 BALTIMORE , July 08, 2021 GLOBE NEWSWIRE -- Mike Ballardie, CEO of Slinger OTCQB: SLBG , a ball sports tech innovator, currently disrupting the tennis market with its game-changing Slinger Bag ball launcher, will be appearing live via Skype on the Ian King Live show on Sky News Friday 9 th July 2021 10:00-11:00am BST. 