Photo: Justin Sullivan/Getty Images

German basketball legend Dirk Nowitzki – the only player ever to play for a single NBA franchise for 21 seasons – talks of his relationship and friendship with his former boss, the Dallas Mavericks owner Mark Cuban.

Nowitzki remembers when Cuban purchased the team in 2000 and quickly showed the team and fan base that he was all-in as its new owner.

Dirk remembers partying with his boss on several occasions, plus a heartfelt, one-on-one negotiation at Cuban’s home in 2010: