That was also apparent on his return of serve, as he tried to hit winners rather than put the ball in play.

"I can hit winners or play 50-stroke points," he said.

He can hit winners from all parts of the court.

Keys already serves over 115 miles an hour and hits winners off both wings.

In the second set he raced to a 4-0 lead and continued to hit winners.

I was going to let him beat me, though, by hitting winners.

Then after a while she was hitting winners from all over the court.

"He was hitting winners from all over the place," Murray said.

I felt like a ball boy on the court, because she was hitting winners everywhere.

The smash and drop shot are both used to hit winners.