The announcement is expected at 3:30 p.m. ET on the Bella Vista Prep YouTube channel.
Wing, 6-foot-6, 180 pounds, Bella Vista Prep (Ariz.), Team Herro (Nike EYBL)
Karvala transferred to Bella Vista Prep in Scottsdale, Arizona, for his senior season. As a junior at Oregon High School (Wisc.), Karvala averaged 26.1 points, 9.5 rebounds and 3.8 assists per game.
247Sports Composite: 4-star (42)
247Sports: 54-star (47)
On3 Industry Ranking: 4-star (43)
ESPN: 4-star (30)
Rivals: 4-star (59)
Karvala will choose between Cal, Indiana and Xavier.