By Ewan Murray Arsenal will be eager to bounce back from weekend disappointment when they host Shakhtar Donetsk in the Champions League on Tuesday night. The Gunners were reduced to ten men for the third time this season when they travelled to the Vitality Stadium on Saturday, with William Saliba seeing red on this occasion. Unlike in draws with Brighton & Hove Albion and Manchester City earlier this term, Mikel Arteta’s side were punished with a defeat for their ill discipline on the south coast. A home tie with Shakhtar Donetsk should provide the perfect opportunity for Arsenal to get back o…