Torn acl during football?

While I was practing for football i got cut from behind by a blitzing linebacker, after practice i went to the trainer and he said i had a dislocated knee so i walked on if for about a week then went to a specialist and he said i have a torn acl. the trainer doesn't think so and my coaches want me to play. i had a mri but not results yet . what is some options there is for me to be able to play this year. i'm gonna be a senior.