Arsenal have made a formal approach to Real Madrid for Isco, according to the Daily Express. The Spanish midfielder could be available later in the season after failing to nail down a regular starting spot with Los Blancos. The Gunners are among the teams interested in his signature and have reportedly made advances already to gain the initiative in the transfer market. Arsenal fans were left fuming that their side did not get any transfer business done this summer - and the Gunners are looking to put the record straight with an early swoop for the next window.