With the swing changes he's made, the shots he hits under pressure with his irons now are nowhere near the quality shots that he hit 12 years ago.
It also makes for precise, heavy-spinning passing shots that have discouraged players from volleying and reduced once-routine shots like overheads into adventures because players practice them less and do not hit them under pressure often.
"If I can experience all those feelings this week, the nervousness of being in contention, having to hit shots under pressure, I think it has to help me," he said.
You can only practice that much, you have to hit shots under pressure.
The champion wasted one break point in the 11th game, hitting long under pressure, but gladly accepted an unexpected gift when Nadal sliced a backhand into the net.
Here's a treat for anyone with a pulse: the isolated vocal track of David Bowie and Queen singer Freddie Mercury recording the hit song "Under Pressure".
But there's no denying that the finish forces players to hit pinpoint shots under pressure, in front of huge galleries that create a stadium-like atmosphere.
The leading women have often hit it harder under pressure than Wozniacki, a rugged defender, and she attributes some of her results in 2012 to both nagging injuries and to going for too much in an attempt to produce the winners that she hoped might lead to her first Grand Slam singles title.
"You know you've done it before, you know you've hit those shots under pressure before.
Wotherspoon was again in action when a poor shot became a good cross, almost finding Dave Mackay, who subsequently hit the deck under pressure from Mark Reynolds.
