Man City overcame Aalborg on penalties after suffering a 2-0 defeat in the second leg of their Uefa Cup tie.
They have less than three days to recover after playing for 120 minutes in Denmark, but Sbragia still does not believe it will be easy for Sunderland to take anything from the match.
The Black Cats lost 3-0 at home to City earlier in the season and Sbragia has a lot of respect for Mark Hughes' men.
"They have got a good squad and good depth to their squad. They can change it around and they have an excellent record at home," Sbragia told Sky Sports News.
"We know it's going to be really difficult.
"We remember we played them at home, they had a European game on Thursday so we thought they were going to be struggling, but they beat us 3-0 on the day.
"So we know it's going to be dangerous."
PressureSbragia accepts he is under pressure as Sunderland look to pull further clear of the relegation zone.
American investor Ellis Short is currently considering a move to increase his stake in the club but Sbragia realises the priority for him is to keep the Black Cats in the top flight.
He said: "It is exciting, but we have got to stay in the Premier League. We have got to stay up there, that's important, that's number one for us.
"As soon as that happens, we can probably start discussing the way forward. But at present, we have got to move up that table.
"There's always pressure on the manager. We have got to be successful, we live or die on results."