Japan's first international foe may have been Canada, and its most regular opponent South Korea, but it is Tonga with whom it has the closest rugby relationship, a rapport that would never have existed without one man's love of the abacus.Five players, either born in the Pacific island or of Tongan descent, have been included in Japan's 23-man squad for Saturday's game against the 'Ikale Tahi, and this week the team received a lecture from captain Michael Leitch about the bond between the two countries.The relationship was forged in 1976 when the then monarch of Tonga, King Taufa'ahau Tupou…READ FULL ARTICLE