San Francisco 49ers wide receiver Deebo Samuel (19) Darren Yamashita-USA TODAY Sports

The Cleveland Browns and San Francisco 49ers could not wait until kickoff on Sunday to start shoving one another around.

A big scuffle broke out between the 49ers and Browns during pregame warmups in Cleveland. Niners wide receivers Deebo Samuel and Brandon Aiyuk were at the center of the scrum. Aiyuk appeared to throw a swing at a Browns player before officials and coaches stepped in to separate the two teams.

Fox Sports showed another angle of the confrontation. Things seem to escalate when Aiyuk was talking trash to Browns players and bumped into Cleveland safety Juan Thornhill. Samuel then came in and headbutted Thornhill.

The game had not started yet, so there were no penalties assessed and no ejections. However, the NFL will likely review the incident and could hand down fines.

The 2-2 Browns entered the game as a 9.5-point underdog against the undefeated 49ers, so they needed all the added motivation they could get.

More must-reads:

TODAY'S BEST
Former MLB infielder Sean Burroughs dies at 43 years old
Angels superstar explains why he chose not to play through knee injury
Cardinals catcher's injury timeline revealed
Suns hire ex-NBA champion as new head coach
Frank Vogel fell victim to a Suns ownership group eager to win
Luka Doncic hands OKC first playoff loss with gutsy Game 2 effort
Three takeaways as Rangers take commanding 3-0 series lead on Hurricanes
Rams make surprising move with former team captain
Ohio State AD is wrong for thinking Michigan wins deserve asterisk
Padres OF Jurickson Profar is a legitimate MVP candidate
Steelers' Cameron Heyward comments on controversial Justin Fields idea
Pacers coach claims officials are biased against 'small market' teams
14-year-old phenom signs unprecedented MLS deal that includes future Man City transfer
Tiger Woods, Rory McIlroy's 'soured' relationship paints murky future for PGA Tour
Stars almost blow another lead, even series with Avalanche
Auburn's Hugh Freeze uncomfortable with 'bidding wars' for top players in transfer portal
Cavaliers punch back, blow out Celtics in Game 2
Coach: Oilers star center could miss Game 2 vs. Canucks
Watch: Cavaliers' Evan Mobley turns defense into offense in Game 2 vs. Celtics
Xander Schauffele tops stacked leaderboard after first round of Wells Fargo Championship

Want more sports news?

Join the hundreds of thousands of fans who start their day with Yardbarker's Morning Bark, the best newsletter in sports.