Hazard has been making positive noises about heading to the Premier League in the summer, with his comments putting the likes of Spurs, Arsenal, Chelsea and Manchester United on alert.
The Lille winger would add a dynamic option to the Arsenal squad and Sagna is clearly eager for Arsene Wenger to win the race for Hazard's signature.
On the eve of the North London derby, Sagna said of a possible move for Hazard to Spurs: "I think it would be an error for him. I watch the French League and Hazard is an excellent player. It would be a major signing for Arsenal, but it's up to different people to decide his destination.
"He needs to reflect and make the choice of club for the style of football. Hazard has the perfect profile for the Premier League because he has swiftness, is a very good dribbler and is able to find spaces for team-mates. He is a player who can change the rhythm and provoke problems in defence."