Tottenham boss Mauricio Pochettino says midfielder Dele Alli will have tests next week to find out more about the dizziness which forced him to go off at half-time in Tuesday's win at Carrow Road.
Pochettino said the 19-year-old trained on Thursday after the incident but he will still be checked as a precaution.
"We don't know why he was dizzy. We need to do some tests next week but we have very good medical staff," he said.
"We are not worried, we just need to assess him and to know why, but we are sure it is not a big problem. We need to have some checks and we need to look again but all seems to be normal and we hope he will be available for Saturday."