A round-up of the latest Arsenal news as Mikel Arteta lands a big injury boost for the visit of Newcastle United but is warned that five players are looking ‘weak mentally’. Arsenal lead the summer transfer race for Brentford striker ToneyBrentford striker Ivan Toney is set to be at the heart of a transfer tug-of-war that Arsenal are leading this summer. That is according to Dean Jones, who reports that the Gunners are the favourites to sign the 27-year-old. North London chiefs have also made contact into a deal. Arsenal are trying to stay quiet about their ongoing interest into signing Toney …