One problem the NBA is facing upon a return to play is making sure players are in proper shape. This long of a layoff may mean some guys have not worked out as hard as they normally would during a season.
Harden looks more like a professional runner than an NBA player. He is extremely lean and doesn't appear to have the same bulk he normally has during a season. It is hard to believe he is the only player dealing with this problem after over two months off.
Such a body type may not have survived back in the era of the 1990s. However, Harden is a shooter and it's not like lacking muscle has hurt other legendary shooters such as Steph Curry or Klay Thompson.
Yet Harden may still end up getting a call from the Rockets training staff just to check in before the season starts up again.