Ive been weight-lifting 3 days a week since I was in 7th grade for football. It makes all the difference in the world. Lifting isnt all about getting stronger, expecially if its for sports, its equally about preventing injury. But lifting, if you know what your doing, can be fun and rewarding.
Also you cant just do the abs, bench, the normal stuff. You need to squat, deadlift, power clean, militart press, jammer, all that stuff. Their is also many other lifts like Towel Bench, Box Squat, Incline Press, Glute Ham, Leg extensions, straight leg dead lift, and the list goes on and on....