Zabaleta insists doubts over manager Roberto Mancini's future did not influence the performance.
He said: "We tried to do our best but it is difficult to find an answer why everything went wrong.
"All we can say is congratulations to Wigan - they played better than us.
"It (Mancini speculation) didn't affect the players. But we are now in a bad situation because when you look at the team, you expect City to win a trophy."