Rating the 21 players used by Martin O'Neill this campaign

Far from being out of World Cup contention by Christmas, as Martin O’Neill feared in the aftermath of the Euros, Ireland find themselves blazing a trail at the summit of Group D after four games.

Three wins in a row have been delivered following the opening night draw in Serbia and 2017 looms offering optimism of a first World Cup appearance in 16 years. That possibility becomes a certainty were Ireland to maintain their form but which players have been to the fore in producing a splendid haul of 10 points?

Have those who produced at the Euros kicked on or faded? And what about the others that have broken into the fray since the summer? Here, we assess the contribution of the 21 players used by O’Neill so far.