In 2003, what would be his final season with the Bengals, Goff played and started all 16 games. On March 5, 2004, Mike Goff signed a five-year contract with the San Diego Chargers. Goff, then 28, received a $3.5 million signing bonus and the total of the deal was $13.25 million. After signing with the Chargers in 2004, Goff immediately assumed a leadership role on the offensive line. He took youngsters Nick Hardwick, Shane Olivea and Marcus McNeill under his wing. He even opened his Pacific Beach home to guard Kris Dielman and regularly hosted members of the offensive line and other current and former teammates to his house for dinner. Before the season, Goff embraced the role of the underdog saying" "I don't give a (darn) what other people say," "They say that all the time, unless you got eight Pro Bowlers. Everyone always questions the offensive line. That's fine. You accept that challenge and it makes you want to work harder to prove everybody wrong." "on Aug 20, 2004. In his first year with the Bolts, he started all 16 games at right guard as he played between rookies Nick Hardwick and Shane Olivea. That year, the Chargers ranked sixth in rushing offense and allowed the fourth-fewest sacks in the league. After the season, Goff was named to the All-Joe Team by USA Today and earned second-team All-Pro honors from Football Digest. In 2005, Goff started all 16 games at right guard as the Chargers ranked in the top ten in rushing offense and in the top half of the league in sacks allowed as he was the only offensive lineman to start all 16 contests for the Chargers. He was named first-team All-Pro by Sports Illustrated and earned USA Today All-Joe honors for the second year in a row. In the 2006 season, Goff started all 16 games for the fourth consecutive season as the Chargers ranked second in rushing offense and eighth in sacks allowed. It was a special season for him and the Chargers. The team had a franchise best 14 and 2 record and running back LaDainian Tomlinson rushed for an NFL record 28 Touchdowns and 1,815 yards. Although he was not named to the Pro Bowl, two of his linemates were: Nick Hardwick and Marcus McNeil. In 2007, Goff was once again constistent as the veteran started all 16 games at right guard and was named to the USA Today All-Joe team. In his final season with the Chargers, 2008, Goff's performance decreased.