Keep an eye on him and make sure he's eating and drinking. Here is a great article that @Sally Sunshine wrote:
https://www.backyardchickens.com/a/mushy-chick-disease-yolk-sack-infection-omphalitis
-Kathy
Looks like he was shrink wrapped and malpositioned with his foot over his head. Next time you go to hatch, raise your humidity at lockdown, it seems like it was too low.
-Kathy