It is a key feature as he was second overall in the Premier League with Crystal Palace in 2018/19, the season when he really made his mark.
Last term, his first as a Red, saw him make two fewer blocks than in his previous campaign - but it was more than any other player in the entire division.
United missed the opening game of this season (at Burnley) due to being allowed extra time to prepare following our Europa League exertions, yet Aaron is still top of the table for blocks on the FBRef.com website.
The Spider has streaked four clear of his nearest rival, Chelsea's N'Golo Kante, with four players one behind the World Cup winner, including our very own Luke Shaw.