Make sure you do some active stretching befoe you lift. Do a warm up set or two with body weight or an empty bar. It'll get your joints, ligaments, muscles, etc ready for the loads you're about to lift. Lift with good form... don't lift so much that you have to sacrifice form, cuz that's just setting you up for more injuries. Recovery is important, too. Try alternating between hot and cold showers, or if you have a hot tub, alternate between it and a cool shower. If you do any static stretching, be sure to do it after your workout when your muscles/ligaments/tendons are warm.