According to
PFF WAR, Nelson was the most valuable offensive lineman in the NFL last season. And the season before that.
Nelson plays offensive guard, a significantly less valuable position than tackle, but that tells you just how good he is at his current position. Nelson has now allowed just three sacks in his three NFL seasons and finished 2020 with 15 total pressures allowed across the full regular season and wild-card game. If anything, Nelson is an even better run-blocker, making him one of the best players in the game, period.