NEW YORK – May 28, 2020 – SHOWTIME Sports® has announced today its SHOWTIME BOXING CLASSICS June slate, featuring a collection of Mike Tyson fights, Anthony Joshua vs. Wladimir Klitschko and other memorable moments from the network’s deep archive of world championship bouts. SHOWTIME BOXING CLASSICS airs every Friday at 10 p.m. ET/PT on SHOWTIME and is also available via the …