MIAMI — The game ended at 9:51 p.m. local time, and after doing a round of interviews, Kobe Bryant headed back onto the court to shoot baskets. The arena was empty except for a few TV reporters getting ready to do their live shots plus a couple of Lakers beat reporters. Even the party people in the arena club were long gone. Bryant shot 3-pointers and free throws mostly for well over an hour, finally finishing a little after midnight. His T-shirt and sweat pants were soaked with sweat. The two ball boys were exhausted from rebounding and passing him the ball. A third came to join them.