The Minnesota Vikings kept a whopping seven undrafted free agents on the initial 53-man roster. General manager Kwesi Adofo-Mensah had kept nine across the first three seasons of his tenure, and it's been an impressive aspect of his resume.
The biggest surprise during Minnesota Vikings training camp has been the emergence of defensive tackle Elijah Williams. Throughout the offseason, the trenches have been a major focus for general manager Kwesi Adofo-Mensah and he did a really good job of maximizing the offseason to fix the defensive line.