One of the most compelling storylines entering the final week of the NFL's regular season is whether Pittsburgh Steelers pass rusher T.J. Watt will set a new single-season sack record.

Watt brought himself within one of the record of 22½ that Michael Strahan set in 2001 with a career-high four sacks of Browns quarterback Baker Mayfield on Monday night. Pittsburgh closes the season at Baltimore, with both teams still mathematically in the hunt for the final playoff spot in the AFC, although they both need a win and significant help.

Watt leads the NFL with 21½ sacks this season, followed by Chicago's Robert Quinn (18), the Browns' Myles Garrett (15), the 49ers' Nick Bosa (15) and the Bengals' Trey Hendrickson (14).