@SmokerFC13 In my defense, I would guess he tweaked it against Toronto, they didn’t have time to do a MRI so the team likely had their staff evaluate it. Then they got back in town and something came up on the imaging.
In the NBA's last 2-minute report, it was concluded that James Harden should have been called for a foul on Anthony Edwards' drive late. Also, the steal from LaMelo Ball on Donovan Mitchell was deemed incidental contact. Not surprised at either determination.