He is known for having his media credentials revoked by Dallas Mavericks owner Mark Cuban in 2016[1] and for interactions with Jason Kidd and Luka Doncic.
[2] MacMahon started out studying business and playing basketball at a Division II school in Florida.
[3] In 2016, MacMahon's role at ESPN changed, moving from being a full-time Mavericks beat writer to covering all the NBA.
[1] Mark Cuban was reportedly unhappy with this change, and revoked the media credentials of MacMahon and Marc Stein.
[6] He is a regular on Brian Windhorst's Hoop Collective podcast,[7] where he is introduced as "Banned MacMahon" and given his own theme song.