Wenger will only be appreciated once he leaves - Henry

Arsenal's manager Arsene Wenger attends a training session at their training facility in London Colney, north of London, November 3, 2014. REUTERS/Eddie Keogh

LONDON (Reuters) - Thierry Henry believes Arsenal manager Arsene Wenger's influence and achievements will only be truly appreciated once he has left the club.

After arriving from Japanese side Grampus Eight in 1996 as a relatively unknown manager, the pioneering Frenchman proceeded to turn Arsenal into one of the most eye-catching and successful clubs in England.