Arsenal have now joined Tottenham Hotspur, Manchester United, and Liverpool in the race to sign one Premier League star. Mikel Arteta is keen to strengthen the Arsenal midfield contingent in this summer transfer window. Signing a midfielder to complement Declan Rice is now a priority for Arsenal this summer. The Gunners certainly lack depth in this part of the pitch. Mohamed Elneny has already left the Emirates Stadium as a free agent, whilst Jorginho is in the twilight years of his career. On top of that, Arsenal are seeking to cash in on Thomas Partey. Arteta will want an injection of energy…