How do I get out of my Grandmother's birthday party to go to my soccer game?

[Robbie]

OK i asked a question before and I know I may sound like a douche bag but this is the side of the family that we do not get along with. I know you say i would feel bad if something happened but I'll be about an hour late or so. My parents will be able to go an time and I'll just meet them there. I'm missing the game game before that for another family function and I feel bad letting my team down. I really enjoy playing soccer. I know it would be bad but I wouldn't feel bad if I was an hour or 2 late. Either way I wouldn't enjoy being at the family party but would stay to be nice. Don't tell me I'm a horrible person because i know that already, I NEED EXCUSES AND REASONS ON WHY IT WOULD BE OK TO GO TO MY GAME