The NFL Draft is now in the past , and the Buffalo Bills’ focus has returned to free agency, where the team has brought in former Kansas City Chiefs defender Mike Danna for a visit. Danna, whose visit was reported by ESPN’s Jeremy Fowler, would serve as a potential veteran boost for Buffalo’s defense, particularly in run support, which allowed the fifth-most yards rushing [2,315] in the NFL a year ago. The sixth-year edge defender hasn’t recorded more than 3.5 sacks since 2023, when he finished the year with a career-high 6.5 sacks. But Danna does have a history as a solid run defender. His performance this past season was rough in both respects, as he played just 42% of the Chiefs’ defensive snaps, the lowest mark since his rookie season in 2020. However, he earned a solid  Pro Football Focus   run-defense grade of 65.6 in 2024 , ranking 48th out of 121 players graded at the position.…