Arsenal return to the Emirates Stadium on Sunday afternoon as Mikel Arteta’s side welcome Borussia Dortmund for their latest pre-season test. Defensively, William Saliba remains sidelined with a back problem, while Jurriën Timber is highly unlikely to feature following summer surgery. Gregor Kobel and Julian Ryerson are unavailable following their late returns from international duty, while Emre Can and Nico Schlotterbeck are sidelined through injury. Dortmund have won two and lost two of their four pre-season matches, so both teams will be looking for a positive performance at the Emirates. How to watch Arsenal vs Borussia DortmundThe match can be watched live and for free in the UK on Arsenal’s official YouTube channel.