Spurs fended off a number of European clubs for the 25-year-old's signature before he signed on transfer deadline day on Friday, but coach Andre Villas-Boas has warned he will have to fight to dislodge 41-year-old former U.S keeper Brad Friedel.
Friedel has not missed a Premier League game since the end of the 2003/04 season and his appearance against Norwich City on Saturday was his 307th successive league match spanning his time at Blackburn Rovers, Aston Villa and now Spurs.
Villas-Boas, who also has goalkeepers Heurelho Gomes and Carlo Cudicini on the books at White Hart Lane, told reporters: "When you transfer it's not written in the contract that you have to play.
"He has to compete against three good goalkeepers and at the moment, Brad is doing extremely well. He deserves to be playing and he'll continue to do so."
"I wanted to thank you for the four years. There are always great fans supporting a great club and Lyon will always need you," Lloris told a packed crowd after striker Lisandro Lopez handed him a jersey bearing "Thanks Hugo" on the back.
Spurs, meanwhile, are likely to appeal against Tom Huddlestone's sending-off for a late sliding tackle on Jonny Howson in the 89th minute which looked more clumsy than intentional.
"I think we will be appealing that, yes," Villas-Boas said.
