It's not because of anything Mills did on or off the field. Rather, it's because of his physical appearance.
A photo of Mills jogging off the field with his helmet off is what is spreading all over the Twitterverse. The reason? His neck.
Mills has a pretty large neck, both in length and girth.
If Mills can stick around the league a while, his neck has a chance to go down in the annals of NFL history with Mike Glennon's and Steve Grogan's.
All jokes aside, Mills has a tremendous opportunity tonight. The third-round pick out of Stanford replaced injured starter Tyrod Taylor in last week's loss to the Cleveland Browns, and with Taylor out for the next few weeks, Mills is suddenly Houston's QB1.
We'll see how he handles that responsibility, starting at 8:20 p.m. ET tonight against the Carolina Panthers.