Thunder Bolt
Silly old bat
I think there's valid arguments for both Gross and Dunk (and perhaps a couple of other players too), but I'm sure you don't believe Dunk's best achievement this season is avoiding cards. You must have worded that incorrectly. Surely.
He already had skill, in defending, his diagonal passes, etc so his biggest improvement is his discipline. He has done extremely well with it.
Is that better?