The San Francisco 49ers were among the Super Bowl favorites heading into the season, but they find themselves below the .500 mark heading into their matchup against Buffalo during the Week 13 NFL schedule.

The NFL's Week 13 slate features plenty of great matchups. Many teams still have playoff aspirations, and the teams that don't need to find out about some players before making changes for next year.

The five best NFL player prop bets to make for the upcoming week.

A total of 14 teams -- seven from each conference -- make the NFL playoffs. The playoff field in each conference consists of four division winners and three wild-card teams. The Chiefs are the only team to clinch a playoff spot entering Sunday's Week 13 action. One team in each conference has been eliminated from playoff contention so far:

Patrick Mahomes passed for 306 yards and became Kansas City's career leader in touchdown passes and the Chiefs clinched an AFC playoff spot with a 19-17 victory over the visiting Las Vegas Raiders on Friday.

The Super Bowl champion Kansas City Chiefs are headed back to the NFL playoffs after eking out a 19-17 victory over the Las Vegas Raiders, whose final drive for a