The Black Cats will take on Southampton at the Stadium of Light in the Premier League on Saturday afternoon, and former Sunderland star Gray has backed them to register a 2-1 victory.
Sunderland will head into the match against Southampton on the back of a 6-2 defeat to Everton away from home at Goodison Park.
Sam Allardyce’s side are second from bottom in the Premier League table at the moment with six points from 11 matches.
The Black Cats are two points behind 17th-place Bournemouth and are in real danger of getting relegated to the Championship at the end of the season.
Winning against Southampton will not be easy despite having home advantage.
The Saints are doing well at the moment and will head into Saturday’s match on the back of a 2-0 win against Bournemouth at St. Mary’s Stadium.