The Togo star said: "We had every chance to win the Champions League against Barcelona. I couldn't play back then because I was cup-tied and in my head it was difficult.
"Now I have a chance to play so there's an argument for me to be more hungry than most of my team-mates, but I think I'm not the only one.
"Cesc Fabregas lost in the final as well and Kolo Toure lost in the final, too, so to be honest I think all these players would like to win it.
"These are the things that we're going to pin together as brothers and help each other on the pitch and off the pitch to try to achieve something this season.
"I don't know whether we're going to win the Champions League or the Premier League but we have to achieve something because we have the quality within the squad.
"We just have to believe in the squad and believe in ourselves to do it."