There was certainly no love lost between certain schools over college football’s rivalry weekend. Skirmishes, fights and all-out brawls broke out at several stadiums, with some clashes triggered by teams planting their flag at centerfield in their rivals’ stadiums – a sight that is becoming increasingly common.

An NFL player who knows a lot about planting flags in college football is Tampa Bay Buccaneers quarterback Baker Mayfield, who infamously threw down the Sooner flag while playing for Oklahoma. When he was asked about what went down in college football on Saturday, he seemed open to keeping these celebrations alive.

Recent flag-planting celebrations during college football's rivalry week ignited controversy, with Michigan's midfield display leading to a brawl.

Flag plants, profanities, fights and other chaos ignited rivalry week throughout college football. Here is a breakdown of all the heated action.

Ohio State and Michigan, one of the sport’s most heated rivalries, started the day’s chaos when a fight broke out after the Wolverines upset the No. 2 Buckeyes. A group of Michigan players attempted to plant a UM flag at midfield at Ohio Stadium. The fight got so heated that multiple law enforcement agencies had to step in and break it up.

College football was a combat sport on rivalry Saturday. Rivalry week matchups are always heated with tensions and resentments building. But four annual clashes ended with fights between opponents when the winning road team attempted to plant a flag on the home field of their adversary to punctuate a victory.

College football was dominated by flags on Saturday. Not the ones thrown by officials — the ones planted by players in the middle of the field. Michigan, North Carolina State and Florida celebrated road wins by displaying flags on the logos in the middle of their rivals’ stadiums.