6 huge Superstars WWE lost to their competition 

#4 Gail Kim

Kim is one of Impact's most decorated stars.

In her first run with WWE, Gail Kim received an instant big-push, winning the Women’s Championship in her first match.

Initially, an underdog face, later a heel submission specialist, Kim was abruptly released but returned to the company in 2008. This second run saw her barely featured, and Kim has since stated she returned to the WWE only for the money.

In between these tours, Kim did her finest work with Impact Wrestling, playing a valiant face against the monstrous Awesome Kong.

Perhaps if the WWE had treated her better, Kim would be with them now, competing against stars like Becky Lynch and Sasha Banks, at a time where WWE’s women’s division is at an all-time peak.

Instead, the WWE failed her, let her go far too soon, and one of the best women’s wrestlers of a generation got lost in the shuffle.

Kim retired in 2017, an Impact Wrestling Hall of Famer, and one of the biggest booking mistakes in WWE history.