Netherlands legend Ruud Gullit has suggested that the reason ​Manchester City manager Pep Guardiola has not found success in the Champions League since leaving ​Barcelona is because he does not have Lionel Messi.

Guardiola won two Champions League titles while he was managing Barcelona, but has not had the same success when he moved to Bayern Munich and now Manchester City. His teams have not even reached the finals after his departure from Barcelona.

Gullit, who won the European Cup two times while he was playing for AC Milan, believes the reason he has not been successful is because he does not have Messi anymore.

"It’s because he doesn’t have Messi," Gullit said on beIN SPORTS, according to ​Goal. "That makes a huge difference. He tried to do it with Bayern Munich. He was close every time, but he couldn’t do it. 

"Winning the [Bundesliga] championship in Munich is not an achievement anymore because they win it almost every year. And I know that Pep, this is what he wants. He wants the Champions League and I feel sorry for him." 

"Of course when he was with Barcelona he had an unbelievable team inherited from [Frank] Rijkaard, who Messi had already made his debut under," he said. "And then Messi became even more important. And Messi was vital in a lot of games for him when he was with Barcelona."

With City out of the Champions League this season, Guardiola will have to wait at least one more year to win the competition again, irrespective of whether he stays with the club or not.