Honestly, if you're a competitive amateur boxer, I would just do a shitload of boxing. You'll still get a fairly muscular look. Or at least lean
Ding Ding Ding we have a winner!! as a former amateur boxer let me give you the advice!! from the first day you start training at your college or boxing gym you should be ready to start fighting in 7 to 9 months in those months you should be concentrating on nothing but boxing you have no time to worry about other type of training. if i remember correct my training consisted of nothing but warming up and strecthing, push ups,crunches, weighted sit ups, punching the bag for 3 mins 9 times with 1 min rest inbetween lots of jump roping and speed bag, and of course lots of sparring with a fellow boxer. you need to be worried about cardio and the speed and torque of your punches before you even consider adding strength training into the mix.when the 7 or 9 month mark reaches make sure all your first few fights are UNSANCTIONED before you sign up for your local Golden Gloves/USA Boxing associate organizations, i made the mistake of not doing this and racked up a lot of loses into my record and never made it to be considered into a boxing team ;(
