UCLA will take on BYU in the Bruins' first game in Maui on Monday, Nov. 25.
Three players from last season's UCLA team could make their pro debuts in the NBA Summer League.
Hands averaged 14.2 points and a Pac-12-leading 6.1 assists per game last season.
The Bruins will open the regular season at home against Long Beach State on Nov. 6.
Powell averaged 6.5 points in 23 games during Toronto's postseason run.
The Bruins will host UNLV next season on Friday, Nov. 15.