Arendsen was a main factor in Albion's defensive effort in the Britons' 59-6 win over Defiance Sept. 1. Arendsen totalled three tackles for loss, all three for sacks, to finish with five stops on the day. Arendsen's sacks total is first in NCAA Division III for this season and helped Albion tie for first nationally with nine sacks in their season opener. Arendsen was also named to D3football.com's National Team of the Week.