Free agency hasn't even begun, and it's already seen a fair share of league-changing surprises. Once free agency is officially ongoing on Sunday evening, though, none of the NBA's 30 teams will be surprised at their spending capabilities leading up to 2019-20.

According to Shams Charania of The Athletic and Stadium, the salary cap for next season has officially been set at $109,140,000, with a luxury-tax threshold of $132,627,00.

These numbers are in line with the projections the league office produced earlier this year. Unlike in recent years, when the official cap number came in a bit larger than expected, every team in the league should understand exactly how much money it has to spend on free agents this offseason.

Though free agency doesn't actually begin until 6:00 p.m. EST on Sunday, six hours earlier than in years past, the fates of multiple marquee players have already been learned.

Kemba Walker, after all signs earlier this month pointed to his return to the Charlotte Hornets, has reportedly agreed to sign with the Boston Celtics on a four-year, $140 million contract. The Golden State Warriors will reportedly extend Klay Thompson a full five-year, $190 million maximum contract on Sunday, cinching his return to the Bay Area. Kyrie Irving and the Brooklyn Nets are reportedly zeroing in on a four-year, max-level deal of their own that could be agreed upon shortly after free agency opens.

Of course, the game's biggest dominoes – reigning Finals MVP Kawhi Leonard and two-time Finals MVP Kevin Durant – have yet to fall. Once they do, the basketball world will have a much clearer picture of how the league landscape is poised to shift both next season and beyond.