By Justin Barrasso It’s been 16 years since her last serious singles match. On Saturday, Amy “Lita” Dumas will return for her first singles match in WWE since 2012. That was a quick squash match on Raw against Heath Slater, and prior to that, her last match took place at Survivor Series in 2006, which ended her iconic run in WWE. A member of the WWE Hall of Fame, Dumas has taken part in two Royal Rumble matches over the past four years, and even had a tag match at theall-women Evolution pay-per-view in 2018. But it has been more than a decade since she has embarked on a match like the one this…