Nigeria international Kenneth Omeruo has undergone a keyhole surgery for a shoulder problem at a Chelsea private clinic in London.
His adviser, Chika Conleth Akujobi said: “Kenneth has undergone surgery for his shoulder problem.
“I spoke to him before he went into the theatre, he’s in good hands because that is one of the best hospitals for such surgery.”
The player’s shoulder pulled out during the FIFA Confederations Cup in Brazil and it relapsed during training at Chelsea recently.
Omeruo will now be sidelined for at least eight weeks, meaning he will miss next month’s 2014 World Cup qualifier at home to Malawi and he could also miss even the final qualifying fixtures should Nigeria advance to such a level.
Omeruo has returned to Chelsea after a loan spell at Dutch club ADO Den Haag.
Manager Jose Mourinho is expected to take a decision on the 19-year-old central defender, whether to let him go on a loan deal in England or stay at Stamford Bridge.