Republic of Ireland boss Giovanni Trapattoni has risked war with Wolves manager Mick McCarthy.
He said: "McCarthy uses Doyle because he has only Doyle.
"He stays alone up front a lot for his club. He is like somebody in a desert."
Trapattoni claimed Doyle was not fit for last month's game with Slovakia and only played him because Long was crocked.
But ex-Ireland boss McCarthy said: "He says Doyle should be at a bigger club and isn't fit. He's 100 per cent fit - just like he was for their last game."