I'll be the first to say you should wait for a few years before starting but if you're looking for an edge in football then it's hard to resist. Do you want to gain just 10lbs or would you like to gain more? If you want strength then fina, winny, halo are all good choices. For strength and bulk look at dbol and anadrol. Maybe something like this:
weeks 1-4: 50mg dbol ED
weeks 1-10: 500mg sust E3D
weeks 5-10: 50mg winny ED
week 12: clomid 300, 200, 150, 100, 100, 100, 100
week 13: clomid 50mg ED
Throw in some arimidex at 1/4mg/day to reduce bloat- however this will take away from the bulk and strength you'll get from the dbol.