Zabaleta is delighted to have reached another FA Cup final.
He said: "A great goal from a header! I am surprised to see Sergio scoring with a header but it was a fantastic header and a great cross by Gareth Barry.
"It was an important goal, early in the second half. We were 2-0 and it was good for us to keep the result.
"We know how important the FA Cup is. It is a massive competition and a team like Manchester City want to keep winning a trophy every year."