The Padres still sent Upton home, giving him an additional day of rest before allowing him to resume his workouts with the team. The Padres played their first road game in Scottsdale against the Giants.
Black indicated he was hopeful Upton could return to workouts and game action Sunday when the Padres play host to the Rockies at the Peoria Sports Complex.
"We'll assess that in the morning," Black said.
Upton was a big hit in his Padres debut Wednesday, hitting a home run against the Mariners in the first Cactus League game of the spring.
Upton would have been off Thursday but in the starting lineup Friday, as Black has generally been giving his projected position-player regulars a start every other day.
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.