Let's save time, space, etc, etc just pay the bet to your friend and that's it. Joking of course!

Well, you got some balls honestly because I wouldn't do such a bet. There are still 13 games left in the league . Thinking that you conceded 13 goals before, I think is quite possible receive around the same number. Possible if you play more defensive you increase the chance to concede less but I doubt only 3.

Isn't always about about the tactic, sometimes the game play after his rules, we all seen that before and yea isn't much you can do.

My advice, play offensive, for me attack is the best defense and try not to make to many faults this would clearly increase your opponent chances to score more against you so don't use hard tackling at all.