Bryson DeChambeau: Why was USA star handed a two-stroke penalty? The Open Chief Referee explains

Bryson DeChambeau received a two-stroke penalty at The Open for inadvertently improving his lie at the 5th hole.

Chief Referee Grant Moir ruled that DeChambeau altered conditions affecting his stroke, gaining a potential advantage.

The penalty dropped DeChambeau from solo second to joint fifth in the second round.

DeChambeau argued he did not interfere with the grass around his ball.