Alexis Sanchez and Calum Chambers decisive for Arsenal as Mohamed Elneny and Alex Iwobi go on display – in pictures

Arsenal's mascot shown on the pitch before Saturday's FA Cup contest against Burnley at the Emirates Stadium. Eddie Keogh / Reuters

Arsenal's Mohamed Elneny in action at the Emirates Stadium on Saturday in the FA Cup. John Sibley / Action Images / Reuters

Arsenal's Alex Iwobi controls the ball against Burnley on Saturday in his team's FA Cup match. Facundo Arrizabalaga / EPA

Arsenal's Francis Coquelin challenges Burnleys' Frederik Ulvestad on Saturday in their FA Cup contest at the Emirates Stadium. Glyn Kirk / AFP

Arsenal's Mohamed Elneny reacts on Saturday during his team's FA Cup match against Burnley. John Sibley / Action Images / Reuters

Calum Chambers scores the first goal for Arsenal against Burnley on Saturday in the FA Cup match at the Emirates Stadium. Eddie Keogh / Reuters

Arsenal's Calum Chambers celebrates scoring on Saturday in his team's FA Cup over Burnley at the Emirates Stadium. Facundo Arrizabalaga / EPA

Arsenal players Laurent Koscielny, left, Francis Coquelin and Alexis Sanchez react after Burnley's 1-1 equaliser on Saturday. Eddie Keogh / Reuters

Arsenal's Alexis Sanchez, obscured far left, scores the second, winning goal for Arsenal against Burnley on Saturday in the FA Cup. Facundo Arrizabalaga / EPA

Arsenal's Alexis Sanchez celebrates his winning goal with teammate Olivier Giroud on the FA Cup on Saturday. Facundo Arrizabalaga / EPA

Arsenal's Alexis Sanchez, centre, celebrates scoring his team's winning goal in the second half against Burnley in the FA Cup. Glyn Kirk / AFP

Images of Arsenal's 2-1 win over Burnley in the FA Cup on Saturday, as Mohamed Elneny debuted, Alex Iwobi got a rare start, Calum Chambers scored and Alexis Sanchezfired in a second-half winner.

Read more: Greg Lea on how Arsenal's Mohamed Elneny-Francis Coquelin-Alex Iwobi midfield impressed