The defender says that morale is still high despite their back-to-back defeats.
Sunderland could be without four key players for their trip to Everton on Sunday.
Leeds United lost 2-0 at home to Blackburn Rovers on Thursday.
Tottenham Hotspur are unbeaten in their last nine Premier League matches.
Offering pizza in return for a better performance... nothing could go wrong!
West Ham United boss Slaven Bilic has been discussing his predecessor and current Sunderland manager Sam Allardyce's time at the club.
Liverpool are preparing to take on Chelsea this weekend.
Leeds United's Lewis Cook has developed a reputation as one of the finest youngsters in the country.
The ex-Gers frontman has lauded the grit and determination of Mark Warburton's team.
The West Ham playmaker is now the subject of praise from another Sky Sports pundit.