The Thunder are already dealing with some key injuries.
On Thursday night, we learned some disappointing information:
Stay in the game with the latest updates on your beloved Bay Area and California sports teams! Sign up here for our All Access Daily newsletter.
Roberson ruptured his left patellar tendon back in late January and missed the remainder of the season.
When Roberson went down, the Thunder boasted the fifth best defensive rating in the league.
Over the final 33 games of the regular season, Oklahoma City's defense slipped to 15th.
Golden State Warriors
Find the latest Golden State Warriors news, highlights, analysis and more with NBC Sports Bay Area and California.
Additionally, Russell Westbrook underwent right knee surgery on Sept. 12 and is expected to be re-evaluated next Wednesday.
His status for the season opener against the Warriors on Oct. 16 is up in the air.
Don't be surprised if the Thunder get off to somewhat of a slow start...
Drew Shiller is the co-host of Warriors Outsiders. Follow him on Twitter @DrewShiller