The Spurs midfielder has almost recovered following surgery to remove a loose nerve in his stomach, which had forced him to play through the pain barrier since January.
"I'll be able to start running next week. It will take time to get my fitness up to scratch but I'll get my head down and get there as quickly as I can.
"Hopefully I'll be fit for the start of the season and I'm aiming to be able to do everything two weeks before that. I won't be match fit, but fit to train fully," he said.