 SANTA MONICA, Calif. , June 16, 2021 GLOBE NEWSWIRE -- Super League Gaming , Inc. Nasdaq: SLGG, a global leader in competitive video gaming and esports entertainment for everyday players around the world, announced today that the company is set to join the Russell Microcap Index, effective June 28, 2021, according to a preliminary list of additions distributed on June 4, 2021. 