He also was a member of the Cologne Centurions Kansas City Chiefs, Philadelphia Eagles, Baltimore Ravens, San Francisco 49ers, and Washington Redskins.
Curtis was signed as an undrafted free agent by the Dallas Cowboys after the 2005 NFL draft on February 28.
On January 10, 2007, he was re-signed by the Cowboys and assigned to the Cologne Centurions in NFL Europa, where he appeared in 9 games (4 starts), while making 14 receptions for 112 yards and 3 touchdown.
On October 8, in a Monday Night Football game against the Buffalo Bills, Curtis recovered an onside kick with 18 seconds remaining to help set up Nick Folk's 53-yard game-winning field goal, giving the Cowboys a 25–24 win.
He finished the season with 3 catches, all of which went for touchdowns, 3 special teams tackles and 3 kickoff returns for 27 yards.
He missed a block in a punt formation, resulting in punter Mat McBriar suffering a broken right foot.
On August 25, 2009, he signed with the Philadelphia Eagles as a free agent, to compete for the third-string tight end role.
[8] On August 16, 2011, he signed with the Washington Redskins, to provide depth because of a series of injuries at the tight end position.