The brother of Kansas City Chiefs quarterback Patrick Mahomes had a defender in the mayor of the city after he was involved in an incident with a gloating Baltimore Ravens fan Sunday night.

Jackson Mahomes was getting the business from a Ravens fan after Baltimore defeated Kansas City and he retaliated by spraying the man with a bottle of water. Kansas City, Mo., Mayor Quinton Lucas offered a plea to anyone making the brother of the Chiefs superstar a target.

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"Leave Jackson Mahomes alone," Lucas tweeted Tuesday.

Patrick Mahomes’ fiancé, Brittany Matthews agreed.

"PREACH," she replied.

PATRICK MAHOMES ON BROTHER'S WATER BOTTLE INCIDENT: 'SOMETHING WE DON'T WANT TO NECESSARILY DO'

Jackson Mahomes, who is the youngest brother of the quarterback and has amassed a large following on social media, was seen on a video getting screamed at by a gloating Ravens fan as Baltimore closed out the win against Kansas City. The 21-year-old responded by throwing water on the fan.

Jackson Mahomes is one of his brother’s biggest supporters and is usually seen on the sidelines or in a suite with Matthews as they cheer on the Chiefs.

He reacted to the incident on Twitter, saying "they were thirsty."

Patrick Mahomes was asked about the incident Wednesday.

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"Obviously, it's something we don't want to necessarily do," he said, via KSHB-TV. "There were things that were said to him and [Patrick’s fiancé Brittany Matthews] that you don't see on the clip. He's been good at trying not to respond to that stuff. He takes a lot and he's usually pretty good at it and he'll learn from it and try to stay away from those people as best he can."