check scoobys website for some workouts, check to see if your school has a football workout.. this is what i would recomend
bench- 5x5
dips- 3x10
lunges-3x10
bicep curls-3x10
skullcrushers-3x10
that should give you strength for football
i forgot about legs but this person is right.... remeber pushups and cardio to

need legs to. and explosive movements. for legs do clean squats dead lifts and stuff. foot ball no matter what position uses your whole body. football is generally played in quick movements not longed out endurance battles