The Gunners moved back up into fourth place after their 4-1 home win over Wigan on Tuesday night sent the FA Cup winners down. Spurs are a point behind their north London rivals, and with an inferior goal difference so have to secure victory over Sunderland, who are now safe, and hope the Gunners draw or are beaten on Tyneside.
Speaking to Tottenham's official website, Lloris said: "We can't think about the Arsenal result, we have to think about our performance, we need three points and from there, we can see what happens."
He added: "It won't be easy. Sunderland have good players, a good team and when we played against them in December, it was a tough game. That was a good result for us.
"It has been difficult for them and a number of teams concerned with relegation.
"Paolo Di Canio has realised his objective, he has saved the team in the Premier League and it is never easy to play against a team that has no pressure."
Defender Jan Vertonghen echoed Lloris' call for complete focus.
"All we can do is win our games and it's important for us to keep believing," the Belgian said.
"We would have to do that anyway on Sunday, so let's hope we can."
Tottenham, meanwhile, had defender Kyle Walker and striker Jermain Defoe selected in the England squad for the upcoming friendlies against the Republic of Ireland and Brazil.
- Sports & Recreation