"I think that the team that wins game five will win the series. Unless we lose game five"

Charles Barkley is recommending that the team that wins video game 5 of the series will be the total winner of the series. He is suggesting that the result of video game 5 is the most crucial video game of the series and will figure out the winner. Nevertheless, he also acknowledges that there is a possibility that the team might lose video game five, which would imply that the series would not be won by that team. This quote shows that Charles Barkley is positive in the significance of game 5, however also acknowledges that anything can occur in sports. He is stressing the significance of game 5, but also recognizing that the group might still lose the series even if they win game 5.