Once-promising seasons hit new lows for the Chicago Bears and San Francisco 49ers last week.

Another late-game meltdown sent the Bears to their sixth straight loss and led to the firing of coach Matt Eberflus. The 49ers suffered their second straight blowout loss and more crushing injuries to go from Super Bowl contenders to outside the playoff picture in a matter of weeks.

The two reeling teams will try to get back on track on Sunday when the Bears (4-8) visit the 49ers (5-7) in Chicago’s first game under interim coach Thomas Brown.

The Bears are hoping to get an emotional boost from the first in-season firing of a head coach in franchise history. Over the last 10 seasons, teams with interim coaches are 13-11 in their first game with the new coach. Those teams had a .284 winning percentage at the time they fired their coaches.