After playing the third game of the 2005 season against the San Francisco 49ers, the Cowboys decided to stay the entire week in California, to better prepare for their next game against the Oakland Raiders. Because of issues they were having with rookie long snapper Jon Condo, the team decided to replace him with Ladouceur, who got a try out that week, in part because he was a local Bay Area player and was signed on September 28. In his NFL debut against the San Francisco 49ers, he snapped cleanly on five punts and two field goals. He finished his rookie season with clean snaps on 70 punts, 25 field goals and 28 PATs.