Okay the secret is out. Lebron has a secret twin, they swap places all the time. Its how Lebron manages to play all those minutes, play well and avoid injuries. When he gets a major injury he just swaps with his twin.
Most of the time, they look and weigh the same, but not during this game. before this game, twin Lebron sat on the couch for most of the week doing a Planet of the Apes marathon, drinking beer and eating chips, not expecting to be relied upon, until Original Lebron suddenly forgot his good luck charm and was scared to play without it, so he asked his twin to step in for him.