 On 1 January 2014, it was announced that he will join Atlético Madrid on six-month loan.With the Spaniards, he won the Spanish Liga and played in the 2014 UEFA Champions League Final against Real Madrid, coming on as a substitute, as Atlético lost 4–1 after extra time.On 31 August 2014, Sosa was signed by Turkish club Beşiktaş on loan from Metalist Kharkiv.