Phil Mickelson makes history with win at PGA Championship from Steve DelVecchio with Larry Brown Sports and coming in to us today from YardBarker.com/www.yardbarker.com Phil Mickelson entered the 2021 PGA Championship at Kiawah Island, S.C., as the 115th-ranked golfer in the world, and he left with arguably the most impressive accomplishment of his career. Mickelson held off Brooks Koepka and the rest of the field to win his second PGA Championship and sixth major. At age 50, he became the oldest golfer in history to win a major. He already entered Sunday as the oldest golfer to hold the 54-hole…