Manchester City boss Roberto Mancini says beating Newcastle United away will be more difficult than victory over Manchester United on Monday.
Mancini is wary of the high-flying Magpies.
He said: "Newcastle will be our hardest game - harder than United. It is strange but it is like this.
"They have had a fantastic season and are playing to get into the Champions League.
"Their manager is one of the best managers here and it will be a tough game.
"It is another Champions League final on Sunday. We have two - Newcastle and QPR.
"We have to keep a big concentration until May 13."