Naively, I still want to know how long a key putt is.

"You have to make the key putts to win."

I made some really key putts for par, putts that kept the momentum going.

Singh made a key 15-foot putt at No. 17 in the morning to save par and maintain a three-stroke lead.

"I made some really key putts or otherwise Juli would be sitting here right now," said Sheehan.

While Woods struck the ball well today, he missed key putts that could have made his round much better.

He made some key putts down the stretch, like the up and down from the bunker at 16.

He missed a key putt at the par-5 No. 13, when he reached the green in two shots, leaving himself an 18-foot attempt for eagle.

Woods ran into trouble off the tee, failed to sink several key putts and may have let another opportunity for victory slip away.

It was that kind of day for Woods, hitting out of the rough, working shots around trees, missing key putts and never building momentum.