Youri Tielemans has been identified as the unnamed player who confronted Manchester United team-mate Lisandro Martinez last month, according to the Daily Mail.
The confrontation followed Martinez's public criticism of the club's hierarchy for failing to recruit sufficient players during the summer transfer window, which he claimed left the squad unprepared for the Champions League.
Confrontation on return flight
Sky Sports reported at the time that an unnamed player confronted the Argentine as the squad boarded their aircraft for the return journey to Manchester after a Champions League defeat to Atletico Madrid.
The Daily Mail now reports that it was Tielemans, a summer signing, who confronted Martinez on the return flight from Madrid over his criticism of the United hierarchy. When questioned on camera about his team-mate's remarks, Tielemans responded with "no comment".
Wider dressing room discord
Martinez, 28, had also targeted director of football Jason Wilcox, declaring that he 'expects more' from him.
Captain Bruno Fernandes also spoke out, questioning the tactics of head coach Michael Carrick after a Champions League defeat to Como.
Pochettino set to take over
The discord has left United languishing in the Premier League relegation zone and appears to have sealed Carrick's fate, with Mauricio Pochettino poised to take over.
The ex-Tottenham and Chelsea chief is edging closer to joining United. The club are understood to have approached the US Soccer Federation and are prepared to pay the £7.5million compensation package.
Pochettino's start at United might be pushed back if he stays with the USA for their two fixtures during the international window, with the national side facing Haiti in the home-and-away legs of their Concacaf Nations League quarter-final. His opening match at the helm of United is scheduled for November 22, when the Red Devils head to Anfield to face arch-rivals Liverpool.
