Baltimore and Cleveland shared 20 points in the last two minutes but it was the Ravens who defeated divisional rivals the Browns 47-42 on Monday.
Lamar Jackson had already scored one passing touchdown and two on the ground as the Ravens entered the final quarter 34-20 up in Ohio.
But their quarterback left the game early in the fourth with cramps and a Baker Mayfield 21-yard pass and five-yard rushing touchdown tipped the scales in favour of the Browns 35-34.
But Baltimore were not beat and Jackson emerged from the sidelines, his first play a 44-yard pass to Marquise Brown for a lead which was wiped when the Browns responded with a 75-yard drive less than a minute later.
Again, Baltimore regrouped and Jackson led a six-play 38-yard drive to put Justin Tucker inside field goal range, with the kicker true from 55 yards to seal the win and a safety on a lateral play ensuring the five-point margin.