9:04pm: The move is official, the Warriors announced on Twitter.
Derrickson, 22, went undrafted out of Georgetown this summer, but he impressed in the Summer League, averaging 13.1 PPG and 5.0 RPG in eight contests.
In five preseason games for Golden State, Derrickson averaged 5.0 PPG and 2.8 RPG. Derrickson joins Damion Lee as the Warriors’ other two-way player. Players on two-way deals are permitted to spend up to 45 days with the NBA team and the rest of the season with the G League affiliate.
The Warriors are expected to leave their 15th roster spot vacant to begin the year for flexibility and payroll purposes. Thus, with the decision on Derrickson, the Warriors’ roster is now complete.
Golden State waived Tyler Ulis and three others on Friday, cutting down its 20-man preseason roster to size. Alfonzo McKinnie filled the Warriors’ 14th roster spot with Lee and Derrickson representing the organization’s two-way deals.
Now, Golden State can turn its attention to opening night against the Thunder on Tuesday. As DeMarcus Cousins continues to rehab from a torn Achilles, Golden State will start Damian Jones at center but the team is not committed beyond that, Slater tweets.