Tottenham Hotspur boss Mauricio Pochettino expects Dele Alli to be fit to face Watford despite the midfielder suffering from a dizzy spell against Norwich City in midweek. 

Pochettino's men welcome the Hornets to White Hart Lane on Saturday as they look to close a five-point gap on surprise league leaders Leicester City. 

Ryan Mason is back in training and could return from an ankle problem while Alli is also expected to feature despite coming off at half time against Norwich on Tuesday. 

Alli will undergo tests next week to determine the cause of the dizziness but Pochettino is hopeful the midfielder will be available on Saturday.

"Today he was good in the training session," Pochettino said. "I am not a doctor, we need to do some tests next week.

"We are not worried. We need to assess him and we need to know why but I am sure it is not a big problem.

"He feels good now, it is true we need after today to assess him again. If he is all normal he will be available on Saturday."