Legendary Arsenal boss, Arsene Wenger, has admitted his biggest regret is failing to win the UEFA Champions League. The 70-year-old claimed he would swap the ‘Invincible’ Premier Leagues season for the biggest club football prize. The Gunners made history in the 2003/2004 campaign, when they won the title without losing a single match. However, during his 22-year stay at Arsenal, the Champions League eluded Wenger. Wenger came closest in 2006, when he lost 2-1 to Barcelona, after taking the lead with ten men. “Yes, but what I mean is – in 2006, we got to the Champions League final and eliminated a big Real Madrid team, a Juventus team without conceding a goal. “And in the final, we were down to ten men after a few minutes. My biggest regret is that, to win the Champions League in 2006, would have crowned that period and that generation and it is what they deserved.