Arsenal are expected to strengthen their midfield in the summer transfer window. Mikel Arteta has done a phenomenal job at the Emirates and has helped the Gunners finish second in two consecutive seasons. The next step would be to go all the way in the Premier League title race, and Arsenal need to sign a new midfielder to raise the level of their squad. The latest on Bruno Guimaraes and Martin Zubimendi to Arsenal linksArsenal will be very short of options in midfield unless they strengthen their squad this summer. Declan Rice is the mainstay in the middle of the park, while Jorginho signed a…