Spurs duo Victor Wembanyama and rookie Stephon Castle have a new nickname for their respective jersey numbers and Wemby's other nickname, "The Alien."

Castle learned the slow step after tutelage from Mike Noyes, the Spurs assistant who is the team’s player development coach. Noyes, like Castle, was a former UConn guard and joined the Spurs in July after spending six years with the Memphis Grizzlies, most recently as player development director.

Wembanyama and Castle have since been dubbed the “Area 51” for their locked-down defense, which has propelled the Spurs to a resurgence this season. The number came from Castle’s jersey number of 5 and Wembanyama’s jersey number of 1, creating a witty nickname for two impressive defenders.