Spurs are chasing their first league win of 2026 in what could prove a pivotal fixture in the fight to avoid relegation.
The mood around Tottenham has lifted in recent days following a 1-1 draw with Liverpool and a thrilling 3-2 win over Atletico Madrid in the Europa League. Manager Igor Tudor, who faced intense pressure until last week, believes his team is showing encouraging signs.
"Tudor has seen big improvements in our last two games," Xavi said. "We want to carry that energy into Sunday.
"Every match left is a final for us, and we have to keep this momentum."
The Netherlands international was a standout performer in Wednesday's win, scoring twice in his preferred number ten role. Xavi hopes to cement his place in the side while driving Tottenham's charge to pick up crucial points.
He also appealed to Spurs fans to continue supporting the team at home. "We know every game at home is important," Xavi told Spurs Play. "Things didn't always go our way this season, but we are really grateful for the fans.
"Please help us on Sunday - we need that energy and passion to get the win."
Spurs will rely on both their players' growing confidence and the backing of their supporters as they face Forest in a match that could shape their season.