Barcelona received a major blow when their appeal against a two window transfer ban was rejected by FIFA.The Catalans are taking the fight to CAS, in the hope it will be reduced to just one window, but it’s not looking good for them. As it stands, from September 1 they cannot work the transfer market until January 2016.At least they got most of their short-term business out of the way – Luis Suarez, Ivan Rakitic, Thomas Vermaelen, Jeremy Mathieu and two goalkeepers (Marc Andre ter Stegen and Claudio Bravo) fill the obvious holes in the squad.They will be fine for this season – but what about the next couple of years?Borussia Dortmund star Marco Reus, who was expected to move to the Camp Nou when his contract expires next summer, would not be able to join the club as predicted. He would be left in limbo as it is too early to arrange a ‘Bosman’ style transfer now.Concerns also remain that they will not have long-term cover for Xavi, who can’t play on forever, while a top-class right-back remains a priority, with Dani Alves expected to leave and his replacemen Douglas Pereira pencilled in for next summer.There is also the question of Real Madrid, with whom Barca are engaged in a Liga transfer market ‘arms race’. Would Los Merengues exploit this opportunity to hoard the world’s best players from January onwards? Could they use this as an opportunity to pull away from Barca?(uk.eurosport.yahoo.com)Bakudaily.Az