Sean Gardner/23XI Racing via Getty ImagesAmong the many notable sports figures who have invested in Buzzer's live streaming service are Wayne Gretzky, Patrick Mahomes and Michael Jordan.The venture capital firms and other investors included DeAndre Hopkins and Devin Booker as well as Jordan, Gretzky and Mahomes.Buzzer is a sports streaming aggregator that sends users alerts and allows them to tune into games for a fee. Buzzer focuses on important moments and close games. It allows fans to tune in in bite-sized chunks of time, rather than having to pay a large sum for season-long packages.This group also includes team governors such as Joe Lacob of the Golden State Warriors, Jeffrey Vinik from Tampa Bay Lightning and Lerner Enterprises from Washington Nationals.Buzzer is currently testing the product and will make it available to users in the fourth quarter.