This in buckets. I think back to the game at Huddersfield last season where Bruno took out Van la Parra in similar fashion to Shawcross and got booked after just 30 seconds.
If Mason had done the same yesterday Shawcross would have possibly thought twice about making that challenge in the box...
Don't know how Shawcross got away with his blatant body check on Knockaert with just a little "chat" from the ref, or how he gave a corner when Shawcross brought down Murray for what was a nailed on penalty!!!