Aaron Ramsey's brilliant form for Arsenal has not only caught the imagination of Premier League crowds and pundits alike. The Welshman's reawakening has been keenly watched by Barcelona who have dispatched scouts to Arsenal's last four games and Wales's matches with Belgium and Macedonia. If word of their presence has reached Arsene Wenger it is no wonder he would not sell Ramsey for £50million. Barcelona are in the process of re-evaluating a squad that is showing signs of wear and tear. Coach Tata Martino has seen his side lose two games in a week and president Sandro Rosell is taking stock with his staff of where and how to strengthen. Centre back is a key area with David Luiz and Daniel Agger constant in their lists while Chelsea's Romelu Lukaku has also been studied. Manchester City's Sergio Aguero has been linked in the Spanish press but while understandable the deal would be difficult for Barcelona. Aguero is no surprise. He is someone Rosell has long wanted as have fierce rivals Real Madrid but City will be hoping their own level of progression is enough to persuade the Argentine he is at a club that will soon compete strongly on the world stage while City's chief executive and former Barcelona vice-president Ferran Soriano would not be keen on allowing assets to strengthen his former club's cause. As for Ramsey, he is loyal to Arsenal and Wenger, a bond forged from their support during his horrific leg break three years ago. He will also be mindful of Cesc Fabregas's fitful progression at the Camp Nou. Indeed, insiders at the Emirates have not ruled out the Spaniard's return to London next summer.