Phil Mickelson withdrew from the Farmers Insurance Open late on Friday night because of a muscle pain in his back, according to a statement released by his management team.
The bum back had been an issue all week for Mickelson and he gave interviews on both Thursday and Friday afternoon after his rounds in which he insinuated he wouldn't keep playing.
"I'm hopeful I can play, but I don't want to do anything stupid here the second week of the year, for me," said Mickelson. "I want to make sure I'm healthy and that I don't get into bad swing habits just because I'm having a bit of a tightening."
It's a smart move for Mickelson even though he wanted to delight the hometown fans.
He was eight back of Jordan Spieth and with a tight muscle, the way Spieth was playing, and a testy south course to deal with 36 holes over the weekend there was no sense in risking long-term injury.
It's a bummer though, what started as a potential Tiger Woods-Phil Mickelson showdown at the beginning of the week has fizzled quite a bit.
Woods is even farther back than Mickelson and will likely be on a jet to Dubai while Spieth or Stewart Cink or Nicolas Colsaerts is holding the trophy come Sunday night.