Shay Given is a doubt for Ireland's final Euro 2008 qualifying game against Wales in Cardiff on November 17th.
The goalkeeper has suffered a groin injury his club fears is a recurrence of the one that resulted in him missing the start of the season.
"It will be two or three weeks," said Newcastle manager Sam Allardyce. "It's a little bit of a worry because it's another groin injury."
Given missed Newcastle's 4-1 home defeat by Portsmouth and is definitely ruled out of next weekend's derby against Sunderland.
