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Toshihiko Koga shows a standard gripping for a right handed player against a left handed opponent. This also works left v right.
Koga shows a standard gripping against a right handed opponent. This also works left v left.
See how Koga gains the upper hand when grip fighting against a left handed opponent
Neil Adams analyses the Lapel feed and gripping strategies of Japan's Takato during the 2015 Paris Grand Slam