evidence: Frank Lampard has said that a Sky Sports debate changed his mind on who is the better player between Cristiano Ronaldo and Lionel Messi. [...] Previously a fan of the Argentine star Messi, Lampard said that seeing what Ronaldo has done since he returned to England with United in the summer, and listening to Gary Neville and Jamie Carragher list his moments in big games and his accolades, has forced him to switch sides. "You know what, I've always been a Messi man," said Lampard on Sky Sports. "And then I watched your debate with Carra [Carragher] actually recently.