these types of injuries are normal for weightlifters who aren't keeping up with their mobility and flexibility. also not warming up enough is a biggie
look at any sport and show up. whether its high school or pros. the athletes are there super early warming up and stretching before they even play. even guys who ride the bench do the whole routine. yet weight lifters are so macho that they just show up and automatically start throwing around heavy weights . no wonder we are all injured as we age.
very important to warm up before and stretch after. and mobility/yoga/stretching in between as much as possible