When Lexi became the youngest player to ever play in the U.S. Women 's Open in 2007 , Nicholas helped her in practice rounds before going to that week 's Nationwide Tour event .
His sister is LPGA Tour star Lexi Thompson .
When star became the youngest player to ever play in the U.S. Women 's Open in 2007 , Nicholas helped Lexi Thompson in practice rounds before going to that week 's Nationwide Tour event .
His sister is LPGA Tour star Lexi Thompson .