It’s impossible to discuss the Los Angeles Rams without mentioning Aaron Donald. By the same token, you simply can’t talk about the NFL’s best defensive players without his name coming up, as well.

It’s one of the highest compliments you can pay No. 99, but he very well may be the best overall player in the NFL, regardless of position. He finished the year with 91 pressures in just 14 games, leading the league in that department, proving to be an unstoppable force up front for the Rams.

In the regular season, Donald had an overall grade from Pro Football Focus of 98.4. It’s one of the highest ever, but it wasn’t exactly historic. However, thanks to his remarkable performance against the Falcons last week in the playoffs, Donald boosted his grade to a monumental level.

Including the postseason, Donald had an overall grade of 99.7 – the highest of any player in PFF history. For perspective, the best grade attainable is 99.9, so Donald was just shy of perfection.

The only reason it’s not officially the best grade ever just yet is that a guy named Harrison Smith is still playing and could overtake Donald. Smith currently owns a grade of 98.8 entering this weekend’s matchup with the Falcons. With a standout performance, he could pass Donald for the best grade ever including the postseason, though it’ll be difficult to do.

When it comes to regular-season grades, J.J. Watt still holds the crown as the best ever. In his historic 2013 season when he nearly won NFL MVP, Watt posted an overall grade of 99.5. Pro Football Focus has never rated a player higher than that in the regular season, though Donald came close in 2015 when he finished at 99.3.