As the third round of the Charles Schwab Challenge picked up Saturday, news broke of PGA Tour golfer Grayson Murray’s sudden death at the age of 30. He withdrew from the tournament yesterday, citing an illness, before Jay Monahan announced his passing Saturday afternoon. As word made its way around the game, Bubba Watson took to social media to pay tribute to Murray. “Very sad to hear the news of Grayson Murray’s passing today,” Watson wrote. “Life is so fragile… I was just hugging you at the Masters, telling you how proud of you I am. Thankful to have known you. My deepest condolences to his …