The Spurs just wear you out. They never stop moving, they never stop passing, they never lack a purpose. Opponents talk about how exhausting it is, physically and mentally, to try to keep up with them. Coming back from a big deficit against San Antonio is almost impossible.
The Heat made a run to start the third quarter, but then the Spurs pushed back. How demoralizing must this play, culminating in a powerful dunk from Tim Duncan, have been for Miami? Oof.