At 8-0, the San Francisco 49ers are off to their best start since 1990.
At 7-2, the Seattle Seahawks are off to their best start since 2013.
The old rivals will meet for the first time this season Monday night in Santa Clara, Calif., and their combined .882 winning percentage is the third-best ever for a Monday Night Football game in Week 10 or later, according to ESPN.
The 49ers opened as a 6.5-point favorite at home.
Five things to know about San Francisco:
1. The 49ers have the NFL’s No. 1 defense
They’re allowing 241.