Nick Matthew Opens Allam British Open Title Defence Against Henrik Mustonen is the Official Retailer at the Allam British Open Squash Championships, the fourth Professional Squash Association (PSA) World Series event of the year, which is being staged at the KC Stadium, in Hull, England from the 20th to 26th May.

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Defending champion Nick Matthew, represented by internationalSPORTgroup, will begin his defence of his Allam British Open Squash Championships title today against Henrik Mustonen.