Progress slow for Vikes rookie Darrisaw; line still in flux

Minnesota Vikings linemen Christian Darrisaw (71) and Oli Udoh (74) smile as they watch drills during NFL football training camp Wednesday, July 28, 2021, in Eagan, Minn. (AP Photo/Bruce Kluckhohn)

Minnesota Vikings linemen Christian Darrisaw, right, front, watches drills during NFL football training camp Wednesday, July 28, 2021, in Eagan, Minn. (AP Photo/Bruce Kluckhohn)

Minnesota Vikings tackle Brian O'Neill,left, center Garrett Bradbury, center, and rookie Christian Darrisaw chat during the NFL football team's training camp, Wednesday, Aug. 4, 2021, in Eagan, Minn. (AP Photo/Jim Mone)