A round-up of the latest Arsenal news as Mikel Arteta targets Jarrad Branthwaite and Eddie Howe issues a warning about a transfer for striker Alexander Isak this summer. Arsenal have one concern about a transfer for Everton star BranthwaiteArsenal are monitoring Jarrad Branthwaite but have one concern about rivalling Manchester United over the defender’s transfer from Everton. That is according to 90min, which reports that Mikel Arteta wants Arsenal to sign a centre-back to improve their depth in the position. Branthwaite has caught the eye of the Emirates Stadium natives having played a pivot…