The Suns did not extend a qualifying offer to Azubuike, making him an unrestricted free agent, Sam Amico of Hoops Wire reports.
Azubuike is doubtful for Monday's game against the Clippers due to an illness.
Azubuike totaled 11 points (5-5 FG, 1-2 FT), 11 rebounds, two assists and one block over 22 minutes during Friday's 120-105 loss to the Kings.
Azubuike and the Suns agreed on a two-way contract for the 2023 season, Adrian Wojnarowski of ESPN reports.
Azubuike is in the starting lineup for Tuesday's game versus the Lakers, Andy Larsen of The Salt Lake Tribune reports.
Azubuike (coach's decision) went unused off the bench in Monday's 117-103 loss to the Suns.
Azubuike finished Monday's 128-120 win over the Kings with 13 points (6-6 FG, 1-2 FT), eight rebounds, one assist, one steal and one block in 18 minutes off the bench.
Azubuike contributed one rebound over four minutes during Wednesday's 117-111 loss to the Grizzlies.
Azubuike (COVID-19) isn't on the injury report for Saturday's game versus Philadelphia, Eric Walden of The Salt Lake Tribune reports.
Azubuike (COVID-19 protocols) will not play in Friday's game against the Magic.