By Daniel Orme Former Liverpool midfielder Graeme Souness has slammed Mikel Arteta for his touchline actions, while suggesting Arsenal still need to prove themselves in the title race. The Gunners are firmly in the race for the Premier League this season. They are going toe-to-toe with Liverpool and reigning champions Manchester City. Arsenal are currently only ahead courtesy of their superior goal difference. It is the second time in a row that they have been involved in a race for the title. The north London side stumbled late in the campaign last term. Giving his verdict, Souness thinks Ars…