The San Antonio Spurs took Castle with the No. 4 pick in the 2024 NBA draft out of UConn. Castle was the Big East freshman of the year as the Huskies won the national championship. The rookie has started 25 games for the Spurs this season and is averaging 11 points, three rebounds and two assists this season.

Mac McClung will compete against Bucks second-year player Andre Jackson Jr., Bulls rookie Matas Buzelis and Spurs rookie Stephon Castle.

The NBA Slam Dunk Contest used to be a can't-miss event during All-Star weekend. Some of the game's biggest stars would participate and give the fans a great show. Players like Michael Jordan, Dominque Wilkins,

During the 2025 NBA All-Star Weekend festivities in San Francisco, the NBA Slam Dunk Contest will feature some young talent in the league. Among the headliners reported so far include Stephon Castle (San Antonio Spurs), Matas Buzelis (Chicago Bulls), and Andre Jackson Jr. (Milwaukee Bucks).

Magic guard Mac McClung will reportedly compete in the Slam Dunk Contest at NBA All-Star Weekend in San Francisco, California.

The four-man field for the 2025 Slam Dunk Contest is set. According to ESPN's Shams Charania, the Orlando Magic's Mac McClung—the two-time defending Slam

I believe in the dunk contest so much that I think it’s ludicrous to claim the 3-point contest is a far better event. We can’t pretend the dunk contest has regressed to Skills Challenge status. That’s hyperbole that is so ridiculous it makes me want to set myself on fire.