This Torres hamstring injury is a lot more worrying imo than a lot of you seem to think. This is possibly the one injury we don't want Torres to be getting. Once you start tweaking your hamstring you end up with a permanent weakness there and it doesn't matter what treatment you give or how bad the original tear is.
A large part of Torres' game is about pace and running the channels. Eventually hamstring injuries will slow him down, as they have done with Michael Owen and many others before him. History always repeats itself.