MILWAUKEE (CBS 58) -- Milwaukee Fire Department Chief Aaron Lipski is waging a friendly bet with Los Angeles Fire Department Chief Jaime Moore. 

"I would like to challenge you to a friendly little sparring match here in hopes that the Milwaukee Brewers take all," Chief Lipski said in a video shared by the fire department Tuesday. "If we win, you have to wear a Milwaukee Fire Department T-shirt proudly and post it on social media. If you win, I'll do the same. So, I've got one question for you: what's your shirt size?"

The Los Angeles Fire Department shared a video of Chief Moore on social media Tuesday night, accepting Lipski's challenge and holding up an LAFD T-shirt.