WIMBLEDON, England -- We've always known Serena Williams' serve is better than her sister's and it played out that way Saturday. Venus served some double faults and Serena took advantage of them.

	Pam's Picks
	Shriver Former WTA Tour pro Pam Shriver is providing ESPN.com with in-depth analysis throughout Wimbledon. Shriver, a tennis analyst for ESPN, was ranked as high as No. 3 in singles play. She won 21 singles and 112 doubles titles, including 22 Grand Slams.

The first set was the best set of tennis they've ever played against each other. They had some great points, although both were a little nervous in the beginning.

Their expressions and body language indicated both were ready to win. There was an intensity there that they've lacked in the past. It wasn't a classic match, but they took a big step to have their rivalry be considered legitimate in the sporting world.

Serena showed the same form she's had the whole tournament. In fact, Serena carried on the same as she has since before the French Open -- just playing a little better than everyone.

Late in the first set when Venus evened the match, that was her chance to act like a two-time winner and take it to Serena and she didn't. Venus didn't have the power on her serve, and she just wasn't doing anything as well as Serena.

Serena will be the No. 1 player on Monday. It's another step in their historic story. On Saturday, Serena also became one of seven women to win the French Open and Wimbledon in the same year. The last person to do that was Steffi Graf in 1996. Graf went on to win the U.S. Open that year.