 The carbon fibre Mercurial SL boots were used in a professional match for the first time in the 2008 UEFA Champions League Final between Manchester United and Chelsea, when they were worn by Cristiano Ronaldo.Didier Drogba was also expected to wear them, but instead wore the black Mercurial Vapor IVs.On 7 June 2008, a limited edition brown leather version of the Mercurial Vapors was released to coincide with the start of UEFA Euro 2008.