Santos will start in Tuesday's preseason game against the Lakers, Danny Emerman of SFStandard.com reports.
Al Horford will move to the bench, so Santos will be back in the starting lineup versus Los Angeles. The 24-year-old is coming off his most productive campaign in 2025-26, averaging 9.2 points, 3.9 rebounds and 2.3 assists over 20.5 minutes in 68 regular-season games, including 30 starts.