Tottenham confirmed Sunday that goalkeeper Hugo Lloris dislocated his elbow during the 3-0 smashing by Brighton and Hove Albion on Saturday.
The keeper made a howling error and then fell backwards onto his elbow.
"It's not good news from the hospital," said manager Mauricio Pochettino.
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Tottenham said in a statement: "Assessment will continue this coming week to ascertain the full extent of the injury and the length of time he will require to undergo rehabilitation."