Serena Williams is serving up four new shades for her OPI Glam Slam! nail polish collection, just in time for the French Open.

Just when we thought we couldn’t get enough of her OPI Black Shatter nail polish, the tennis champ is offering two new versions of the must-have crackle effect nail polish.  White Shatter is matched with a silver-glitter shade named "Spark de Triomphe," while Red Shatter will be sold with “Red Rally Pink,” a gold-flecked rose hue.  

“Whether I’m on or off the court, style is important,” Williams said in a statement. “The White Shatter and Red Shatter lacquers allow me to add a high-fashion take to the elegant silver and sunset-colored polishes.”

The tennis-turned-beauty maven is pursuing a nail technician license and has dreams of one day opening up a nail salon of her own. "No one likes getting their nails done more than I do,” she has said. “I go every four days to get a manicure and every seven for a pedicure.”

The newest Grand Slam! duos will be available on May 1 for $14.95 each. Visit opi.com for more information.

(Photo: Will Ragozzino/Getty Images)