After clambering their way into Premier League title contention, City suffered a major setback at Aston Villa 11 days ago.
It leaves the Blues knowing they can ill afford further slip-ups if they are to exert meaningful pressure on their championship rivals.
And that means overcoming a side that has lost just twice on home soil this season and last week booked their place in the Carling Cup final.
"After a defeat, it is always important to start winning again really quickly," said Barry. "We are champing at the bit to get back into the Premier League at St Andrew's and get another three points.
"We can't afford to lose more ground because before we know it we will start to slip down the table, so it is a massive game for us."