Hall, 20, is 6-foot-9 and went undrafted out of Moravian (N.C.) Prep in 2020. He then signed a two-way deal with OKC in December.
He appeared in 21 games with the Thunder last season, averaging 4.1 and 2.8 rebounds. He also spent one game with the OKC Blue of the G League.
“Hall likely signed the qualifying offer he received from Oklahoma City at the start of August,” Arthur Hall wrote. “It carries a $50K guarantee and essentially serves as a two-way contract for the upcoming season. However, it doesn’t mean he will fill one of the two-way slots when the season begins.”