The Magic announced Monday that Ross left the bubble after Sunday's game against the Boston Celtics because of a "personal matter" that will require the off-site tests.
The Magic also said the off-site tests were "advised by league physicians."
Ross will not play Tuesday against the Brooklyn Nets, and the Magic will determine his availability based on test results and the league's virus-related quarantine protocols.
Ross, 29, scored 18 points in 37 minutes Sunday in Orlando's overtime loss to Boston. He is Orlando's third-leading scorer this season, averaging 14.7 points per game.