Martin O’Neill’s side kick-off their UEFA Nations League campaign against Wales at the Cardiff City Stadium on Thursday, 6th September (kick-off 7.45pm).

They will then head out to Wroclaw for a friendly against Poland at Stadion Miejski on Tuesday, 11th September, which will also kick-off at 7.45pm.

And Magpies defender Clark, 27, has been called-up to the initial 32-man Ireland squad, who are due to report to camp on Sunday, 2nd September ahead of the Wales clash.

The final squad will be confirmed by O’Neill on Monday, September 3rd. Clark could win his 32nd and 33rd international caps if he features against Wales and Poland.

Provisional Republic of Ireland squad

Goalkeepers: Colin Doyle (Hearts), Sean McDermott (Kristiansund BK), Kieran O'Hara (Macclesfield Town*), Darren Randolph (Middlesbrough).

Defenders: Seamus Coleman (Everton), Cyrus Christie (Fulham), Matt Doherty (Wolverhampton Wanderers), Shane Duffy (Brighton & Hove Albion), Richard Keogh (Derby County), Ciaran Clark (Newcastle United), Kevin Long, Stephen Ward (Burnley), John Egan, Enda Stevens (Sheffield United), Darragh Lenihan (Blackburn Rovers), Greg Cunningham (Cardiff City).

Midfielders: Alan Judge (Brentford), Jeff Hendrick (Burnley), Conor Hourihane (Aston Villa), Alan Browne (Preston North End), Shaun Williams (Millwall), David Meyler (Reading), Harry Arter (Cardiff City*), Daryl Horgan (Hibernian), Callum O'Dowda (Bristol City), James McClean (Stoke City).

Forwards: Jonathan Walters (Burnley), Shane Long (Southampton), Graham Burke, Callum Robinson (Preston North End), Aiden O'Brien (Millwall).