Serena Williams Makes U.S. Open Entrance Wearing a Train Ahead of Retirement - See Photos!

Serena Williams is playing at her final U.S. Open and she just made her entrance on the court for her first round of the tournament!

The 40-year-old tennis star wore a train while making her entrance on the court on Monday (August 29) at the USTA Billie Jean King National Tennis Center in New York City.

Serena is playing Danka Kovinic of Montenegro in the first round of the Women’s Singles tournament.

Nike revealed that Serena is wearing a figure skating-inspired dress that is encrusted with diamonds along with the NikeCourt Flare 2 tennis sneaker.

Earlier this month, Serena announced her plan to retire from tennis after playing in the U.S. Open.

Click through the gallery for 40+ photos of Serena Williams making her entrance on the court…