In a shock move, Ospreys have dropped star centre Gavin Henson from their Heineken Cup openers against Leicester and Perpignan.
The club offered no explanation for the dramatic decision other than saying it was down to "a rugby-related disciplinary decision".
Henson revealed he had been punished for reacting "poorly" to feedback about his performance from Ospreys' team management and then taking "unauthorised leave" from training.
"Having received feedback from team management earlier in the week as part of a review of the Ospreys' last home game, I reacted poorly and additionally took unauthorised leave to consider the matters raised," said Henson.
"Having signed up to the Ospreys' code of conduct introduced earlier this year, I was part of a disciplinary decision from the Ospreys leadership group which consists of senior players and rugby management.
"I fully accept this decision and entirely support the penalty imposed, and very much look forward to rejoining my team-mates on the field."
Henson, who has been recovering from an ankle injury, made his first start of the season only last Sunday in Ospreys' last gasp EDF Energy Cup win over Harlequins.
The first of the Pool Three matches is due to take place against Leicester at Welford Road on Sunday.
And the decision to axe Henson is sure to cause a headache for the Welsh region, who are already without his midfield partner Sonny Parker due to a chest injury.
The news is the latest in a string of off-field controversies that have followed the 26-year-old throughout his career.
The two-match ban could reduce his chances of featuring in Wales' autumn Test opener against world champions South Africa next month
With just two matches before facing the Springboks on November 8 - EDF clashes against Worcester on October 26 and London Irish seven days later - Hensons' lack of match practice is sure to be a major concern for coach Warren Gatland.
Henson's No.12 shirt has been handed to Andrew Bishop, with former Ulster wing Tommy Bowe, a try-scorer in last week's match, featuring at outside centre.