The Brazil midfielder has been out with a knee injury for six months but will return to first-team training for the club's tour of Hong Kong
The Brazilian midfielder has been sidelined since January after undergoing knee surgery, while the French defender has not featured for Spurs since August 18 due to a knee problem.
"Sandro hit six months last week and we are on plan, he’s made an excellent recovery and we’re very happy with him,” Villas-Boas told the club's official website.
"One more week and he’ll join the group and he will also join us for full training in Hong Kong."
Kaboul suffered a further setback during his return last season in April, but Villas-Boas has revealed the 27-year-old is taking part in full training without any problems.
He continued: "It’s a very good start to pre-season for both players.
"It’s great for Younes after a year out to come back to training and have double sessions with no problems."