The Victor Wembanyama effect is real -- the most hyped prospect since LeBron James isn't just generating an uptick in regular season tickets sales ... fans are paying big money to catch a glimpse of the 7'5" phenom in the SUMMER LEAGUE!
Wemby -- who sat out the Sacramento Summer League games earlier this week -- is expected to make his NBA debut in the Las Vegas Summer League on Friday against the Charlotte Hornets.
Ticket reseller Gametime, which specializes in last-minute tix, tells TMZ Sports they're seeing a "huge demand for tickets" .