Grealish was one of Villa's stand-out performers during their promotion push last season but looks set to leave the club amid financial struggles.
Their problems have caught Spurs' attention who will now reportedly launch a bid to secure Grealish's signature this summer.
Any possible deal would likely be in the region of £30-40million, which would represent good value in today's transfer market.
Tottenham face stiff competition from the likes of Manchester United, Arsenal, Leicester City and Fulham though in what could potentially be a Premier League tug-of-war.