Mickelson, Oosthuizen share PGA lead at windy Kiawah

KIAWAH ISLAND: Phil Mickelson, chasing a historic sixth major title at age 50, shared the lead with South Africa’s Louis Oosthuizen after Friday’s second round of the PGA Championship at windy Kiawah Island.

American left-hander Mickelson, who could become golf’s oldest major champion, and Oosthuizen, the 2010 British Open winner, were deadlocked atop the leaderboard on five-under 139 after 36 holes on the formidable Ocean Course.

“I’m heading into the weekend with an opportunity and I’m really excited about it,” Mickelson said. “If you told me (I was leading) Sunday night, I’d really enjoy it. Right now, there’s a lot to do.”

Oosthuizen, who birdied five of the first 12 holes,…