David Beckham is hurt again. If you don't know, he's pro soccer player (now in the USA, formerly of Spain and Engerland). Beckham makes a lot of cash, and because of that, not playing is not an option.
But guess what happens when you are hurt and not fully recoverd and you try to play or workout while slightly injured.
You hurt something else.
Beckham was still recovering from an ankle sprain, yet was probably under a lot of pressure to play. And then he hurt his knee, spraining his MCL, because as he says, "I went into the tackle favoring my ankle".
His injury beget another injury.
And that can happen to you. So if you have hurt something, dont' try and work around it. Rest the area. There might be exercises you can do for an unrelated part of the body, but if you have a sore shoulder - don't try doing upper body work. It's just going to lead to something else breaking down.
Train smart, train safe, stay strong,