Serena Williams defeats Garbiñe Muguruza for Wimbledon singles title

Serena Williams celebrates a point during her victory over Garbine Muguruza in the Wimbledon final on Saturday. (Pavel Golovkin / Associated Press)They will start preparing the red carpet in New York City soon for Serena Williams.

She won the Wimbledon tennis title Saturday, her sixth and her 21st Grand Slam title, by beating a young Spaniard, Garbiñe Muguruza, 6-4, 6-4.

That means that Williams had completed her second “Serena Slam” -- four major titles in a row -- and also meant she would be gunning for a rare Calendar Year Grand Slam at the U.S. Open in New York, starting in late August.

Only one other player in the modern era of tennis has achieved that, Steffi Graf in 1988, when she also…