The Aspen (Colo.) Times reported the SUV Fegan, 56, was driving was broadsided by a bus as Fegan tried to navigate a mountain highway. 

MORE: Notable sports deaths of 2018

A sample of Twitter reaction from the league, players, executives and Mavericks owner Mark Cuban:

Fegan’s client list at various points included Dwight Howard, John Wall, DeMarcus Cousins, DeAndre Jordan and Ricky Rubio, among others. His hard-nosed negotiating style earned him respect and scorn within league circles.