Arsene Wenger accused his under-achieving Arsenal stars of lacking passion and desire during a fiery training ground inquest into their shambolic 3-2 defeat against Olympiacos.

The Arsenal manager, under mounting pressure following a second successive defeat in the group stage of the Champions League, criticised his players for their work-rate, intensity and attitude.

Wenger rarely raises his voice with the players, but they were left in no doubt during their usual debrief at their London Colney training centre that he expects them to raise their standards following the shocking nature of the defeat.

Arsene Wenger tore into his players following their embarrassing Champions League defeat to Olympiacos

The Gunners lost their second consecutive game in Europe after being beaten 3-2 by the Greeks at home

Wenger looks dejected after seeing his side concede a series of terrible goals at the Emirates

ARSENAL REMAINING FIXTURES Oct 20 - Bayern Munich (H) Nov 4 - Bayern Munich (A) Nov 24 - Dinamo Zagreb (H) Dec 9 - Olympiacos (A) Advertisement

Arsenal face Bayern Munich, who beat Dinamo Zagreb 5-0 on Tuesday evening inside the Allianz Arena, in their next two games in the competition and face an embarrassing early exit from the European Cup.

First team players were surprised by the nature of Wenger’s criticism, but they have little to complain about after failing to beat the Greek champions at the Emirates.

Although the meeting is traditionally designed for players to air their views in a healthy exchange with coaching staff, this time they sat in silence and accepted Wenger’s frustrations.

Wenger maintained his own unique style by refusing to single out individuals during the meeting, but the first team squad have been left in no doubt that he expects them to raise their standards.

Arsenal have a massive game at home to Barclays Premier League leaders Manchester United on Sunday at the Emirates and Wenger needs a big performance from his players.

Arsenal are bottom of their Champions League group before playing Bayern Munich in their next two fixtures

Arsenal's cause was not helped after Laurent Koscienly was forced off the field with an injury

Alexis Sanchez headed in a second equaliser for Arsenal only for Olympiacos to score a third at the Emirates

Petr Cech consoles fellow goalkeeper David Ospina after his terrible gaffe for the Greek's second goal