That would see Carvalhal's side move level with the Saints on points and then it would be down to goal difference.
Swansea are at home to already-relegated Stoke on the final day.
"It was not an easy situation when we came in".
"Those celebrations shouldn't be misinterpreted", said Hughes, who was so caught up in the joyful post-match scenes with his players and staff that he failed to indulge in the customary post-match handshake with his Swansea counterpart Carlos Carvalhal.
"It's a sad day obviously, but this season has been very hard for me".
It is believed the decision to quit playing has been made by the player who has been told he can have a coaching role at the club, though Britton is now considering his options.
"We have done a very good job with 20 points from 17 games. If we continued that path, we would be fighting for Europe". "We maybe only have a 0.1 percent chance, but we must fight for this".
The final round of fixtures in the 2017/18 English Premier League season takes place on Sunday afternoon with the results having massive ramifications at the bottom of the table as well as in the top four.
The Swans have a goal difference of -27, a considerable way off Southampton's -18.
"We have everything to play for on Sunday, everything", Lambert said. We certainly don't want to finish last.
Spurs host Leicester City who have had a disappointing end to their season; the Hammers host Everton in what could be Wayne Rooney's final club game in England.
The Saints have a much better goal difference than many of those around them at -18, meaning there is a now a nine-goal swing between them and the Swans who sit on -27. They flirted with relegation in the previous two seasons and fundamental problems at the club have not been addressed since Steve Kaplan and Jason Levien, Swansea's majority shareholders, took control a little under two years ago.
Eric Choupo-Moting has been in training with Stoke but is unlikely to return from a long-term groin problem this season, while Bruno Martins Indi has also been ruled out with a groin injury for the Potters.
Southampton midfielder Oriol Romeu has hailed manager Mark Hughes's positive impact on the dressing room after the Welshman led the team to near certain safety in the Premier League.