Liverpool have completed the signing of Spanish 18 year old Emmanuel Mendy. The full back joins the Reds on a three year deal.Mendy joins The Reds as the third full back they have signed this Summer with Andrea Dossena and Philip Degen already arriving from Udinese and Borussia Dortmund respectively. Mendy was playing for Spanish outfit Deportivo Murcia and his favoured position is right back, however his versatility allows him to play on both sides.