Arsenal #TeamNews: Alexis Snchez and Walcott starts for Arsenal as Gabriel is dropped for Koscielny

Arsenal welcombe back Alexis Sanchez to the starting line-up for the Premier League match with Watford on Saturday, while Laurent Koscielny also returns, replacing Gabriel at the heart of the defence. Alexis had been a doubt for Arsene Wenger's side, with a strenuous double header for Chile during the international break and a continuing groin problem, but the former Barcelona man is