The 26-year-old – who was part of Phil Neville’s England squad which reached the Women’s World Cup semi-finals this summer – grew up supporting United but spent 12 years at rivals Manchester City over two spells, prior to completing her move to the Reds.
“It’s unbelievable for me and especially for my family, who are all big Manchester United fans,” she said in her first interview with club media. “I’m really happy to become a Red.”
Like Stoney was in her playing days, McManus is a defender and she cannot wait to tap into Casey’s wealth of knowledge to help her improve.