Bayer Leverkusen ace Michael Ballack believes Chelsea's management changes have prevented his old club from dominating Europe. Ballack, who will be a part of the Bayer Leverkusen squad to face Chelsea in the UEFA Champions League next Tuesday, thinks that represents an underachievement.
"Chelsea should have won more trophies with their squad because the quality is there. The ambition was there and you can see what the club has spent on players," he said in The Times.
"Changing the manager every year did not help, but you cannot expect to have a situation like Sir Alex Ferguson at Manchester United."
But he added: "The Champions League may come for Chelsea when they're not expecting it."
