Ralls deserved a yellow

[Jimmy the Jock]

Correct. Ralls took the risk and came off second best. That's football. Same for defenders in the box, get the wrong side of an attacker and make contact-player goes down-Penalty. If you get yourself into shit positions, aren't concentrating etc, then commit a foul to compensate for your own poor play, then the risk is there.

A ridiculous tackle, would have been charged with assault if he did that on the street.

Red all day long. I wonder what he was thinking , pulling the shirt would have been a better option.