US Senior Open 36-hole co-leader Padraig Harrington was not happy with one of NBC's course reporters for breaching what he called "golf etiquette."

Maltbie told Golf.com, "All these checks I’ve gotten from NBC, (Harrington's) name isn’t on any of them," when explaining his position in their viral exchange at the U.S. Senior Open.

Padraig Harrington got into it with NBC analyst and longtime PGA golfer Roger Maltbie on Friday. The incident, which happened midway through the U.S. Senior Open, was seemingly over Harrington taking offense from Maltbie not helping his group look for a lost golf ball.