After badly spraining his right ankle in the one-on-one game with Lewis, Mike goes to see his wife and can barely walk up the stairs. In a subsequent shot while they are all at the dinner table, a long shot shows Mike vividly bouncing his right leg on the ball of his foot showing no signs of the injury, impossible to do without immense pain.
During the first half of final game, a floor shot of the action shows the score being Vistor 90, Celtics 91 from a scoreboard located in the corner. A few scenes later and it's halftime, and the scene shows the main scoreboard above the floor showing Vistor 38, Celtics 52.
When Mike tells Chris McCarhthey that the Celtics were up by 18 at the half, in fact, they were only up by 15.