Nolan Gould burst his lip open from kneeing himself in the face and look closely in this episode and you can see it.
The blind side is actually the quarterbacks Zone where he can't spot a Defender trying to attack him.
The episode is titled after the Sandra Bullock film "The Blind Side".
'Movies that star Zac Efron are mentioned by Principal Brown. Sofía Vergara and Adam Devine have both starred in movies with Zac, with New Year's Eve (2011) and Mike and Dave Need Wedding Dates (2016) respectively. In fact, Mike & Dave had just been released 2 months prior.
Alex only appears in two scenes and has no dialogue at all.