Harry Arter was back on the Republic of Ireland training pitch on Tuesday morning after patching up his differences with assistant manager Roy Keane.

The Bournemouth midfielder, currently on loan at Cardiff, made himself unavailable for last month's clashes with Wales and Poland, with manager Martin O'Neill later admitting a summer spat with his number two may have been behind his absence.

Matters were exacerbated when audio of defender Stephen Ward outlining his version of events surrounding incidents involving Keane and Arter and team-mate Jonathan Walters was made public last month.

However, the former Manchester United and Ireland skipper and Arter have since cleared the air to enable the latter to return.

Both Ward and Walters are missing from the current squad because of injury, but Arter trained with his team-mates under the watchful eyes of Keane and O'Neill in an open session at the Aviva Stadium.

Striker Shane Long, who came on as a substitute in Southampton's 3-0 Premier League defeat by Chelsea on Sunday, was the only member of a reduced squad who did not train.

O'Neill, who initially named a 32-man party for the Nations League matches against Denmark on Saturday and Wales on Tuesday, has whittled down his selection to 26, with Greg Cunningham, Alan Judge, Daryl Horgan, Richie Towell, Graham Burke and Ronan Curtis making way.

Republic of Ireland Squad

Goalkeepers: Darren Randolph (Middlesbrough), Colin Doyle (Hearts), Sean McDermott (Kristiansund BK)

Defenders: Cyrus Christie (Fulham), Matt Doherty (Wolverhampton Wanderers), Shane Duffy (Brighton & Hove Albion), Richard Keogh (Derby County), Ciaran Clark (Newcastle United), Kevin Long (Burnley), John Egan, Enda Stevens (Sheffield United), Darragh Lenihan, Derrick Williams (Blackburn Rovers)

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

Forwards: Shane Long (Southampton), Callum Robinson, Sean Maguire (Preston North End), Aiden O'Brien (Millwall), Scott Hogan (Aston Villa)

*Indicates player is on loan

PA Media