Celtic defender Liam Scales has withdrawn from the Republic of Ireland squad for the upcoming friendlies against Belgium and Switzerland. 

Scales, 25, missed the Hoops’ Scottish Premiership victory against St Johnstone on Saturday with a knock and hasn’t recovered in time to join up with his national team this week. 

A statement read: "Celtic defender Liam Scales suffered injury ahead of the Scottish club's 3-1 win over St. Johnstone and has been ruled out for the two friendlies.

"Excelsior striker Troy Parrott has missed the last two matches for the club including this weekend's 1-1 draw against RKC Waalwijk, and will not report for international duty this week. 

"Interim Head Coach John O'Shea has chosen not to call any replacements up so far with the rest of the squad set to report fit today whilst U-21 duo Joe Hodge and Andy Moran will report for the senior squad after the U-21 qualifier against San Marino on Friday."

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There is still some SPFL representation in the Republic of Ireland squad, with Aberdeen midfielder Jamie McGrath and Celtic striker Adam Idah among the selected group. 

Goalkeepers: Bazunu (Southampton), Kelleher (Liverpool), Travers (Bournemouth).

Defenders: Coleman (Everton), Doherty (Wolverhampton Wanderers), Collins (Brentford), Omobamidele (Nottingham Forest), O'Shea (Burnley), O'Brien (Lyon), Brady (Preston), Ebosele (Udinese).

Midfielders: Cullen (Burnley), Knight (Bristol City), Smallbone (Southampton), McGrath (Aberdeen), O'Dowda (Cardiff City), Sykes (Bristol City), Azaz (Middlesbrough), Johnston (West Bromwich Albion).

Forwards: Ferguson (Brighton), Idah (Celtic, on loan from Norwich), Obafemi (Millwall, on loan from Burnley), Szmodics (Blackburn), Ogbene (Luton Town).