The 22-year-old has been in impressive form this season for Lille, scoring 12 goals in 31 appearances for the Ligue 1 side.
And his performances have attracted interest from the Premier League with Arsenal, Chelsea and Manchester United all believed to be eyeing a move for the Morocco international.
However, it appears as if fellow suitors Spurs are now leading the race to sign Boufal.
It is understood Lille want £16million for their star man along with added bonuses.
Arsenal are understood to be interested in signing Boufal as they look to bolster their attacking ranks, with Theo Walcott and Alex Oxlade-Chamberlain being linked with the exit door this summer.
Chelsea are likely to sell Eden Hazard to Real Madrid in the summer if the La Liga giants meet their £80m valuation.
While United have been linked with the player since January, but a move failed to materialise due to the uncertainty surrounding Louis van Gaal's future.