(Files) Tottenham Hotspur's English striker Harry Kane lies on the floor after being fouled during the football match against Watford at Vicarage Road Stadium in Watford, on December 2, 2017.
Tottenham return to action against Swansea in the FA Cup at the weekend without their talisman.
Tottenham are set to have to go without Kane in several upcoming big clashes but would want their top scorer back for their fight for a top-four finish later in the season.
The injury could also keep the England global out of the Russian Federation 2018 World Cup in the summer.
On the first occasion he suffered the same injury he missed seven weeks - a similar period to the expected lay-off this time - in September 2016, while the second injury only ruled him out for three weeks.
He also sits out England's two friendlies this month against Holland and Italy, with manager Gareth Southgate names his squad for that double-header on Thursday.
Given the delay for a diagnosis, it looks highly unlikely that the 35-goal striker will be fit for Spurs' FA Cup quarter-final at Swansea on Saturday, while his involvement in next week's worldwide break also looks doubtful with England set to face Holland and Italy in friendlies.
The 24-year-old was pictured with his foot in a brace and using crutches when out in Essex on Monday.
Llorente was an unused substitute against Bournemouth despite the fact that Kane was taken off injured in the first half, seemingly signalling his role under Pochettino - and it's now claimed that he will be leaving this summer.