What happened: Von Miller has signed with the Dallas Cowboys, ending his tenure with the Buffalo Bills. The move follows earlier reporting that the veteran pass rusher was finalizing terms with Dallas.

Why it matters: The Cowboys add a proven edge rusher to their front seven as the roster rounds into shape ahead of the season. For Buffalo, it closes the book on Miller's time with the franchise as the Bills continue reshaping their defensive front.

What to watch: Watch for Dallas to formally add Miller to the roster and for reporting on how his role is defined within the Cowboys' front seven.