It's a long way from the German Football League to the NFL. Here's a look at some video showing the first stages of Babatunde Aiyegbusi's journey that he hops will end up with the Vikings.
Here's video from the Wrioclaw Giants of the Polish American Football League in 2013. He wears No. 71.
Here's a highlight video from the German Football League in 2014:
Here's video from his Pro Day workout at the University of Texas-San Antonio earlier this month.