Is Ayo Dosunmu hitting the rookie wall? ‘I’m prepared to take care of my body,’ the guard says before the Chicago Bulls’ loss to the Atlanta Hawks.

As rookies enter the final turn of the NBA season, their progress typically is accompanied by bated breath as fans await their crash into an invisible phenomenon: the rookie wall.

It’s an understandable side effect of a major step-up in competition. Rookies enter their first professional season accustomed to the shorter NCAA season. Their opponents are bigger, stronger, smarter, faster. After months of playing three or four games a week, the grind of the season wears down the optimism and excitement fueling young players through their first year in the league.

Yet despite all these hurdles, Chicago Bulls players and coaches