Prior to kick-off, both teams occupied the 17th and 18th positions on the EPL log with the same points tally, and with just one game left to play after this encounter, the match at Swansea's Liberty stadium was billed as a relegation six-pointer, victor takes all encounter.
Southampton were forced to spend the night at the Vale of Glamorgan hotel, near Cardiff, but fortunately the change in sleeping arrangements did not affect their players as Mark Hughes' men secured a 1-0 to secure their Premier League status on Tuesday night.
Romeu, however, wants his team to remain focused against City.
A win for either the Swans or Southampton would see them needing just a point from their final two games, while if it finishes a draw at the Liberty, Huddersfield will require two.
"It is not done yet but we have put ourselves in the position where we have a great chance to stay up".
"We played to win, we showed everyone we played to win".
In a statement it has also said the club's American owners should implement a full review into the "running of the footballing side of the club", writing that the "Swansea way, for so long a source of considerable pride, has not existed for some time".
It is understood the Swansea board do not plan to renew the manager's contract as the Swans look nearly certain to be relegated from the Premier league.
"We are depending on others at the moment but this is the reality".
"We can't depend on ourselves and we don't like that". If we still believe then we can stay (in the Premier League), we must do our part on the weekend and win the game.
The good news for Carvalhal is that the Potters certainly look the most accommodating opposition after a week in which their owners Peter and John Coates admitted the club needed a major overhaul after losing some of its "core values".
Jose Mourinho will want his Manchester United side to head into their FA Cup final with Chelsea on the back of an end-of-season win, and the Red Devils should do that easily on Sunday as they host Watford at Old Trafford.