Nikki Bella announces retirement from WWE

Nikki Bella is walking away from the squared circle.

The two-time WWE Divas Champion announced her retirement from in-ring competition Sunday on the season finale of her reality show "Total Bellas," explaining that she came to the decision after a recent tour of Europe.

The announcement comes two weeks after Nikki's twin sister, Brie Bella, revealed on "Total Bellas" that she, too, was ready to retire.

Both sisters made their debuts in 2007 for WWE's then-developmental territory Florida Championship Wrestling before appearing on "SmackDown" the following year.