The Phoenix Suns upset the Dallas Mavericks 107-105 on opening night of the NBA season on Wednesday .
Thanks to 28 points from Devin Booker and a game-winning baseline jumper from Damion Lee with 9.7 seconds remaining in regulation.
Lee, who spent the previous four years with the Warriors before joining the Suns this summer.
Capped off a huge fourth quarter that featured a pair of 3-pointers by sinking a disputed 10-foot jumper.
Luka Doncic, a standout for Dallas, squandered a late opportunity by missing a deep 3-pointer.
The Suns' triumph against the club that humiliatingly ousted them from the playoffs last year was a remarkable comeback performance.