A question - how does Mickelson's win compare to other unexpected late-career majors?
In my mind, it's not up there with Nicklaus in the 1986 Masters or Woods in the 2019 Masters, but it's not far behind, and probably ahead of others (Ernie Els - 2012 Open, Hale Irwin - 1990 US Open are a couple of examples that come to mind).