NEWS: Donnie Nelson sues Dallas Mavericks

[Fuerza1]

According to Marc Stein, the NBA already knew about the Lutin hotel allegation, and that Donnie was to be relieved of his duties at season's end. 
https://twitter.com/TheSteinLine/status/...8689587201

New statement from the Mavs via Tim Macmahon: 

https://twitter.com/espn_macmahon/status...2169564165

It's implied Donnie's inappropriate actions led to his termination.