Stiliyan Petrov could follow coach Stanimor Stoilov and quit the Bulgarian national side following the country's disappointing start to Euro 2012 qualifying.
Bulgaria were defeated 4-0 by England on Friday and after subsequently losing 1-0 at home to Montenegro on Tuesday, Stoilov announced that he was quitting his post as national team boss.
After confirming his own resignation, Stoilov revealed that Aston Villa midfielder Petrov, 31, could also withdraw his services from consideration.
Manchester United striker Dimitar Berbatov said prior to the start of the Euro 2012 qualifying campaign that he no longer wishes to be considered.
"Stiliyan also said he may quit," Stoilov said. "But I hope he'll change his mind and I also want (Dimitar) Berbatov to change his mind. Bulgaria need them."
Petrov previously retired from international football following a disagreement with Hristo Stoichkov in 2006, only to be coaxed back to the national side.