Luka Doncic still plans on signing a contract extension with the Dallas Mavericks this offseason, but his future with the franchise is clearly on uncertain footing. Doncic is also represented by Bill Duffy, who has had a rocky relationship with the Mavericks over the years as detailed by Tim MacMahon on The Lowe Post. MacMahon adds that Donnie Nelson, who was fired by Mark Cuban, helped the Mavericks manage the relationship with Duffy. 

"Where Donnie was really important, just in terms of the Luka dynamic," said MacMahon. "Not just the relationship with Luka but the relationship he had with Bill Duffy, Luka's agent.

"The Mavericks, well before Luka... they have burned some bridges with Duffy. Bill Duffy was Steve Nash's agent. Mark Cuban had a multi-thousand blog post blasting Bill Duffy after Steve Nash's departure to the Suns way back when.

"Bill Duffy represented Darren Collison. Represents Rajon Rondo. Those guys had disastrous, brief, messy, contentious stints playing for Rick Carlisle.

"Bill Duffy is ultimately going to do what is in the best interest of his client, but my point in saying all of this is I don't think these guys are going to get benefit of the doubt. I don't think they've earned benefit of the doubt with him."