Sánchez and Koscielny: Arsenal’s king pair could make all the difference

Key attacker and defender return for trip to Anfield and Arsène Wenger knows how much depends on the duo’s form, fitness and desire in the months aheadIt has felt like an age since he has been sighted in an Arsenal shirt, feeding off the emotions of a competitive match and, after the summer he has had, it may come as a release to feature against Liverpool at Anfield on Sunday. Laurent Koscielny, the defensive lynchpin, has certainly been missed.The focus for the travelling support w