MaryKate Duignan Glidewell (born January 17, 1985) is an American professional wrestler. She is known for her work in WWE, where she performed under the ring name Sage Beckett at their developmental territory NXT. She is also known for working for Total Nonstop Action Wrestling under the ring name Rosie Lottalove. She previously retired on June 24, 2012, due to injuries before resuming her career in October 2014 after losing nearly 130 pounds.