Washington Redskins (first stint) Dockery was selected in the third round (81st overall) of the
2003 NFL draft by the
Washington Redskins. In 2003, he began his rookie season as a backup at several positions along the offensive line, including left guard and right tackle. He was inserted into the starting lineup in Week 4 against the
New England Patriots at left guard, which was his first career NFL start. He would go on to start the final 13 games of the regular season at left guard. In 2004, he started all 16 games at left guard for the Redskins, teaming with left tackle
Chris Samuels to form a solid tandem on the left side of the offensive line. He finished the season having garnered 29 consecutive starts at left guard, although he was one of the league leaders in false starts.
Buffalo Bills On March 2, 2007, the
Buffalo Bills signed Dockery to a 7-year $49 million contract with an $18 million signing bonus, the third largest in NFL history at his position. He was a two-year starter at left guard (32 games) and was part of one of the NFL's biggest offensive lines in terms of height and weight. In 2008, the unit struggled in pass protection (allowed 38 sacks) and the offense ranked 25th in the league in total yards. He was released in a salary-cap move on February 26, 2009.
Washington Redskins (second stint) On March 1, 2009, Dockery re-signed with the Redskins to a 5-year, $26.5 million contract. He started 16 games at left guard, replacing free agent
Pete Kendall. In 2010, he had a streak of 116 straight games played ended, when he was declared inactive in Week 5, after struggling playing in new head coach
Mike Shanahan's zone blocking scheme. He injured his left knee against the
Tennessee Titans. He was released on March 1, 2011.
Dallas Cowboys On September 4, 2011, Dockery was signed by the
Dallas Cowboys. He started in the second game against the
San Francisco 49ers in place of an injured
Bill Nagy, but suffered a sprained medial collateral ligament and a tibial plateau fracture. He recovered in week 8 to replace an injured
Montrae Holland as a backup guard for the rest of the season. On August 3, 2012, he was signed to be the backup guard to
Mackenzy Bernadeau. He wasn't re-signed after the season. Dockery finished his career after appearing in 141 games with 115 starts. He started his first career game in week four of the 2003 season, and went on to start 109 straight contests until 2010. He also had a stretch of 116 consecutive games. ==Personal life==