Spurs are yet to win a league game under Harry Redknapp’s successor André Villas-Boas after losing to Newcastle United in the opening fixture, followed by successive draws against West Bromwich Albion and Norwich City.
Tottenham make the trip to Reading on Sunday in search of three points, and Gallas warned his team-mates not to underestimate the newly-promoted side.
“We have only two points, but we don’t have to be too much afraid because it’s the beginning of the season, we have a new manager and a new style,” Gallas told Tottenham’s website.
“We have to be very focused on what we have to do and we have to be focused for 90 minutes or maybe more.
“All the players want to win, the fans want to see their team win so on Sunday we will try to get the three points.
“We have to be very strong against that team because they are good, they are strong and they are playing well.”
Meanwhile, Villas-Boas is confident Tottenham’s deadline day signing Clint Dempsey can help improve the club’s goal scoring record.
“Dempsey can play all different kinds of position,” Villas-Boas said.
“He can play behind the striker, as the main striker or in the channels.
“He is a player who scored 17 last season, 12 the season before.
“He is a massive goalscorer and another good coup in the market on the final day of the window for us.”