Looks like the reduced minutes are not keeping him healthy. Get well soon Jo. Two years ago you were 1st-team all-NBA and finished 4th in MVP voting. Your professionalism in being asked to come off the bench in a contract year is commendable.
Man, you are something else! You don't think Noah has been moving way better than he did last season? And if that's the case, are you completely confident it has nothing to do with the reduced minutes? An arm sprain is going to happen regardless of minutes. Other injuries, like those to Noah's Knee and Derrick Rose, are often tied to fatigue and wear and tear.