The 26-year-old has shrugged off a knee problem it seems.
The goalkeeper called the Black Cats achievement in staying up "incredible" but insisted they should not have been in trouble in the first place.
Newcastle United's relegation to the Championship was confirmed yesterday evening.
Malky Mackay has reportedly been interview for the Celtic job.
Roberto Martinez's position as Everton manager has come under serious pressure, with Newcastle United boss Rafael Benitez said to be one of the candidates to takeover.
Liverpool played out a 1-1 draw with Chelsea in the Premier League on Wednesday.
The Spaniard is all set to depart Red Bull Salzburg, according to reports.
The Sky Sports pundit is predicting a first-leg win for the Owls.
Celtic striker Leigh Griffiths congratulates Virgil van Dijk on winning prestigious Southampton awards.
The Sunderland striker has been terrific this season.