Serena Williams is the winner over Venus Williams in the great sister act of professional tennis.
It was Serena's power that proved to be the crucial difference. She took the match 7-6, 6-3. The younger sister played strongly, flawlessly. If anything, it was Venus' serve that let her down for the championship.
It is one of the toughest tests in tennis, to move in just a few weeks from the clay of the French Open to the grass courts of Wimbledon.
With her Wimbledon victory, Serena Williams joins a very elite group to take both titles. The last person to do that was Steffi Graf back in 1996.
The win also shatters her older sister Venus' bid at taking the All England Club championship title three years in a row, a feat not accomplished since Graf did the "hat trick" in 1993.
With Serena's game in top form, and barring any injuries, the new world number one will be the big favorite going into the U.S. Open.
Both Serena and Venus must be seen as the real class in women's tennis today. We are likely to see the Williams sisters back on the grass of Wimbledon in yet another final.
Meanwhile there was some unfinished business over on court number one, the completion of the second men's semifinal held over from Friday because of rain.
This was a great story, too. David Nalbandian from Argentina, a rank outsider playing in his first-ever Wimbledon, booked himself a place in Sunday's final against world number one Lleyton Hewitt of Australia.
Nalbandian took the final, fifth deciding set against the Belgian player, Xavier Malisee, 6-2.
It's the first time that a player has made it to the tournament finale in his very first year, an amazing accomplishment for a 20-year-old player.