On July 20th, 2007 Tim Donaghy was charged with gambling on NBA games which might have been the worst controversy in NBA history.
— George Jarjour (@gjarjour) July 20, 2020
Tim Donaghy went rogue. Now do I think this is the worst scandal in NBA history? Absolutely. Donaghy himself may or may not have cost both the Phoenix Suns and Sacramento Kings NBA championships.