Real Madrid have just three days to guarantee the permanent signing of Javier Hernandez this summer before Manchester United open the market to other clubs interested in the Mexican striker. According to Spanish newspaper El Confidencial, Los Blancos have already agreed a €20m fee for the Red Devils outcast, but need to complete the deal in principle in the next 72 hours to be assured of that price. Hernandez has endured a relatively frustrating season-long loan spell at the Bernabeu, but is coming off the back of a memorable week after netting the winner against Atletico Madrid in the Champions League quarter-final. He followed that up with two goals in the 4-2 victory against Celta Vigo on Sunday, and now there's talk that Carlo Ancelotti wants to keep the 26-year-old in Spain. According to Hernandez's agent the ball is very much in Real Madrid's court. If they accept by April 30th then there's nothing Manchester United can do to stop the player from leaving Old Trafford.