Kenny Jackett, who managed seven teams in the EFL, has passed away at the age of 64.Jackett played over 400 games for Watford across his career and is ranked sixth in the club's all-time appearance record.He achieved three promotions as a manager with Swansea City, Millwall and Wolves.Jackett managed Watford, Swansea City, Millwall, Wolves, Rotherham United, Portsmouth, and Leyton Orient in a managerial career lasting over 900 games.TRENDINGStoriesVideosYour SayClubs have been paying tribute to Jackett on social media.His former side, Millwall, wrote: "Millwall Football Club is extremely saddened to announce the passing of former manager Kenny Jackett at the age of 64. "Kenny managed over 300 games during his time with the club, leading The Lions to promotion from League One and to an FA Cup Semi-Final. Rest in peace, Kenny."Portsmouth paid their tributes, noting: "Portsmouth Football Club are deeply saddened to learn of the death of Kenny Jackett, who passed away yesterday at the age of 64.LATEST SPORTS NEWSWorld Cup 2026 day two: Mexico and South Korea kick off campaigns with wins, two games to comeRoy Keane and Ian Wright lock horns with Gary Neville over Mexico's opening goal of World CupGary Neville insists World Cup hosts must 'give up their country' after wading into visa row"Kenny will be missed by everyone at Pompey and throughout the football family. Our thoughts are with all his loved ones at this sad time."Wolves also paid their respects, writing online: "Wolves are devastated to learn of the passing of our former manager Kenny Jackett. "Kenny led the club to its incredible record-breaking League One title and laid the foundations for the club as we know it today. "The thoughts of everyone at Wolves are with Kenny's family and friends at this time."More to follow...Our Standards: The GB News Editorial Charter