What happened: San Antonio's decision on whether Tobias Harris will start or come off the bench is delayed after the forward sustained a left calf strain. The team planned to use an upcoming scrimmage and Thursday's preseason opener to clarify his role.

Why it matters: The setback disrupts the Spurs' ability to solidify their lineup ahead of the regular season. Harris joined San Antonio in July on a two-year, $31 million contract to provide veteran production. The coaching staff must now construct its preseason rotations without his on-court participation.

What to watch: Watch for updates on Harris' availability ahead of the October 20 opener against the Oklahoma City Thunder.