Republic of Ireland manager Martin O'Neill has been left sweating over the fitness of winger James McClean ahead of Sunday night 's Euro 2016 qualifier against Poland . The 25-year-old Wigan midfielder limped out of training at Gannon Park in Malahide on Tuesday morning with his left ankle heavily strapped , and was immediately taken for a scan . O'Neill later insisted the examination was precautionary , but he was left crossing his fingers over a man who has become a regular in his team . Republic of Ireland 's Stephen Quinn and James McClean on the ball during the training session in Malahide . Republic of Ireland 's Anthony Stokes and McClean during the training session at Gannon Park . The manager said : 'James has got a sore ankle . He 's gone for a scan - precautionary , I hope - but he was just feeling it a little bit . We 'll see how he is . 'It did n't happen in training . He felt a little bit sore after yesterday . He thought it might go away , but it 's just a bit of a pain across the ankle . ' O'Neill will be desperate to have McClean fit for the clash with the surprise Group D leaders with fellow wide-man Aiden McGeady having not played for club Everton since January 31 because of a knee problem , from which he has now recovered , but which has left him short of match fitness . Republic of Ireland 's Quinn and Kevin Doyle during the training session at Gannon Park . The 63-year-old , who first worked with McClean during their time together at Sunderland , insists he is yet to pick his team for what could prove to be a pivotal game in the campaign , but admits the former Derry City player has become an important player for him . He said : 'They are all key . We have n't picked the side yet , but James has played exceptionally well for us in most of the games since I have been in charge . Obviously I know him quite well - very well , in fact - and yes , he 's a good player for us . ' Republic of Ireland 's Roy Keane gives instructions during the training session at Gannon Park . O'Neill also has concerns over Burnley full-back Stephen Ward , who was due to undergo a procedure to remove screws used to repair an ankle injury on Monday , while striker Jonathan Walters trained wearing a mask to protect the fractured cheekbone he had repaired recently . Everton midfield duo James McCarthy and Darron Gibson have been nursed through the early part of the week after their exertions on club duty , while skipper Robbie Keane and new squad member Harry Arter have now joined up with the rest of the party . Republic of Ireland 's Darren Randolf , David Forde , Cyrus Christie and Richard Keogh during training . Republic of Ireland assistant manager Keane shares a joke as the players train in Malahide , Ireland .
Republic of Ireland winger Martin O'Neill could miss Poland clash . Wigan player limped out of training and immediately went for scans . Boss James McClean insists scans were a precautionary measure . But McClean left training in Malahide with his ankle heavily strapped .