However, the Frenchman has been photographed back in training with his Spurs teammates, per Sky Sports, leading to speculation he could be fit to play in the Europa League tie against Sheriff Tiraspol on Thursday.
Lloris' injury attracted much attention following the weekend's 0-0 draw at Everton, during which he was clattered by Romelu Lukaku's knee.
Andre Villas-Boas' decision to allow his goalkeeper to play the remaining 12 minutes of the game, despite his admission that the keeper did not remember the incident—per the Mail Online—drew widespread criticism from the health profession.
When a player - or any individual - suffers a blow to the head that is severe enough for them to lose consciousness, it is vital they urgently seek appropriate medical attention.
A physio or doctor treating a player on the pitch simply cannot accurately gauge the severity of the damage caused to the player's brain in such a setting as there may be delayed presentation of symptoms.
By continuing to play, the player may have caused greater damage to his brain. He should have been removed from the game immediately and taken to hospital for thorough tests and observation.
Whatever the initial damage may have been, Lloris seems healthy judging by the fact that he's back training with the squad at Enfield following the trip to Goodison Park.
Having said that, it might be worth Villas-Boas giving Brad Friedel his second Europa League start of the campaign.
Having remained on the pitch at Everton, Lloris is still yet to miss a minute of Tottenham's league season thus far, making it 17 consecutive Premier League starts for the 26-year-old.