John Daly Defends at Insperity Invitational

John Daly to Defend PGA TOUR Champions Insperity Invitational with Vertical Groove Driver Daly’s Success Prompts Increased Usage of Vertical Groove Driver on PGA TOUR Champions; Rocco Mediate, Kenny Perry, Doug Garwood, Tim Petrovic and Others in the Field will Tee it up with Innovative  Jupiter, FL … May 3, 2018 … When John Daly captured the 2017 PGA TOUR Champions Insperity invitational, it […]

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