Saints stars including Nathan Redmond, Charlie Austin and Virgil van Dijk all took to social media after the 3-0 victory at West Ham United.
The Scottish Premiership side host Pep Guardiola's men in the Champions League.
Sunderland were beaten 3-2 by Crystal Palace on Saturday afternoon.
Tottenham Hotspur midfielder Victor Wanyama has received praise from Graham Roberts.
West Ham United currently sit 18th in the Premier League after a woeful start to their season.
Lee Johnson saw the Owls first-hand a fortnight ago.
We preview Burnley and Watford's predicted line-ups ahead of their Premier League contest.
Karius has featured against Derby County and Hull City so far.
Celtic continue to steamroll their way through the Scottish Premiership.
As Rory McIlroy is inevitably highlighted as a leader within Europe’s Ryder Cup team and a player the United States identify as a blue chip opponent, it will be easy to forget wide-eyed youthfulness. Whereas now McIlroy is a global superstar and four-time major champion, there was a time in the not-so distant past that Darren Clarke, Europe’s captain, was Northern Ireland’s revered golfing son.