Ablett continued to establish his position as one of the premier players of the competition during the 2008 AFL season. He helped the Cats achieve a record-equalling 21-win season and secure the McClelland Trophy for the second successive year. His standout season was recognised early on when he was selected to play for the Victorian state team in the AFL Hall of Fame Tribute Match. However, a groin injury prevented him from participating in the all-star event. Having qualified for the finals series in first position on the ladder, Geelong progressed through to the grand final for the second successive year; despite losing only one game during the home-and-away season, Geelong failed to capture the premiership as they were defeated by in the grand final. Ablett's performance in the final, during which he recorded a game-high 34 possessions, five tackles, eight inside 50s, and kicked an equal-team-high two goals, was recognised as he placed second in Norm Smith Medal voting for best afield in the grand final. Ablett featured in 21 games for the season and was awarded All-Australian honours for the second successive year. Despite entering the 2008 Brownlow Medal count as the favourite once again, Ablett tallied 22 votes to finish third behind Adam Cooney. However, Ablett's performances throughout the year were further recognised when he was awarded the AFLPA Leigh Matthews Trophy and AFL Coaches' Association 'Champion Player of the Year' awards for the second consecutive season. After increasing his disposal average once again to 28.9 possessions per game, Ablett finished runner-up for the Carji Greeves Medal to teammate Joel Corey. His 606 disposals ranked ninth in the league, while his 318 handpasses throughout the season ranked him fourth within the competition. Geelong coach Mark Thompson described Ablett's 2008 season as "amazing" and implied he was unsure if Ablett could improve any more. Thompson cited that he believed Ablett to be "at the top of his game".