Wilkins went undrafted and signed with the Colts as a free agent in 1999. He served as the team's starting returner for kickoffs and punts, and eventually made it into the starting lineup on offense as well, finishing third on the team in receiving, while racking up a total of 2,089 total yards. This set the record for most yards gained by an undrafted rookie, and made him one of only six rookies ever to gain more than 2,000 yards.
Wilkins was not drafted but signed with the Colts as a free agent in 1999. He became the team's primary returner for both kickoffs and punts, eventually earning a starting position on offense.  He finished third on the team in receiving yards, accumulating a total of 2,089 yards, which set a record for most yards gained by an undrafted rookie and made him one of only six rookies to surpass 2,000 yards.