Tiger Woods still has plenty of rust.

That was obvious Friday in the second round of the British Open.

In just his second tournament since returning from back surgery, Woods shot his worst round at a British Open since that stormy day at Muirfield in 2002 — a 5-over 77 that required a birdie at the final hole just to make the cut.

It was his only birdie of the round.

Woods double-bogeyed the first, bogeyed the second, then settled for 14 straight pars before really making a mess of the 17th.

He knocked his first tee shot out of bounds, and yanked his do-over in the tall grass next to the 16th fairway. That led to a triple-bogey and put him outside the cut line — until a 6-foot birdie at the 18th.