 He also started in the end-of-tour match against the Barbarians.Despite a lack of game time during the 2005 Super 12 season—he was suspended for six weeks after being found guilty of trampling on fellow All Black Richie McCaw during the game between the Blues and Crusaders—Williams was chosen to start in the opening Test of the All Blacks season, a 91–0 rout of , during which he scored his second international try.His third came two weeks later, in the first Test against the touring British and Irish Lions, a game in which he dominated the line-out, winning the ball several times on the opposition's throw, most effectively in the 24th minute, when, having caught the ball on a Lions' defensive line-out, he spotted a gap in the opposing line, darted through it and, shaking off an attempted tackle by the Lions half-back, Dwayne Peel, drove over the goal-line for the All Blacks' first try of the match.