Arsenal are closing in on their first signing of the summer transfer window. The Gunners ran Manchester City close for the Premier League title last season but ultimately missed out by just two points. Now, the onus will be on sporting director Edu to make two or three quality additions in the market, including a prolific number nine. That is an area which desperately needs addressing and it seems the club are about to do just that. READ MORE: £65m striker Arsenal want to sign says he’s ‘happy’ to stay at current club this summerArsenal close to signing Viktor GyokeresAccording to Sporting out…