Magpies defender set for a lengthy spell on the sidelines.
Newcastle United captain Fabricio Coloccini could be out until May according to BBC Sport.
The floppy-haired defender landed uncomfortably after attempting a spectacular overhead clearance during his side’s 4-2 loss to Southampton in February.
The defender has established himself as a key member of the Newcastle side and played a pivotal role in their fifth placed-finish last season.
Coloccini has expressed a desire to return to Argentina and handed in a transfer request during the January transfer window but the club persuaded him to stay on at least until the end of the season.
His wish will now be granted sooner than expected as he has flown to Argentina while he recovers from the injury.
It is reported that Coloccini has broken two bones in his back and can do nothing but rest until the injury heals.
Newcastle boss Alan Pardew said, ‘There’s no treatment he can have. It’s going to be between three and seven weeks.’
The player has suffered an injury-plagued season after picking up a hamstring injury while on international duty with Argentina. His position in the Newcastle backline is likely to be filled by January signing Mapou Yanga-Mbiwa who signed for the club for around £7 million from Montpellier.