The Broncos sent a sixth-round pick to the Dolphins on March 2 for the 14-year veteran defensive tackle. They extended an earlier deadline for the defensive lineman to report but when he failed to show up for his physical, the deal was voided.
The Broncos retained their rights to the sixth-round pick in this year's draft and the Dolphins retained the rights to Wilkinson.
Wilkinson was selected by Cincinnati with the first overall selection in the 1994 draft out of Ohio State. He has played for the Bengals (1994-97), Washington (1998-2002), Detroit (2003-05) and Miami.
Wilkinson, who has 54½ sacks in his career, has started all 16 regular-season games eight times in his career, including three of the past four seasons. He joined the Dolphins after starting every game in three seasons with the Lions.
He was strictly a backup for the Dolphins last season, playing 10 games and posting 14 tackles, breaking up three passes and forcing a fumble.