Jackson racked up another 10 Sacks in 1970 as the AFL and NFL merged. Jackson was the first Bronco to be named to the All-NFL first team in 1970 and was a starter in the Pro Bowl that year.
In 1970, Jackson's performance led to him being recognized as a top player by both the AFL and NFL, making him the first Bronco selected for the All-NFL first team and starting in the Pro Bowl.