The injury was serious enough to mean the 18-year-old also misses England’s European Championship play-off first leg against France at White Hart Lane.
It’s hoped Lennon will be available for Tottenham’s next match in the Premiership, a London derby against West Ham on November 20th.
Meanwhile, Noe Pamerot completed a full game in the reserves for the first time since recovering from a knee ligament injury sustained in April.