Thanks to my dad's tie-in to USANA, I was able to get a discounted bag of Chocolate Whey Nutrimeal. Now, I wish to build stronger and more efficient muscles for tennis. My main targets are my triceps and abdominal muscles for stronger forehands, backhands, and serves. May someone recommend me a plyometric workout routine for these? I'm 15 years old and I have done two years of high school cross country. I only have two 10-lb. dumbbells and my body. I want to note that I'm not relatively strong in upper body strength compared to my more athletic classmates. I've read that whey protein is very helpful in developing anaerobic muscle strength, so I'm willing to try out a "not too easy, not too hard" routine. Thanks!