Newcastle United Football Club star Jonas Gutierrez has been ruled out for three weeks.

The 25-year-old injured his shoulder whilst on international duty for Argentina, and it has now been confirmed that the summer signing faces a spell on the sidelines.

"Homero De Agostino, the doctor of the national team, confirmed that he checked Jonas Gutierrez, who has a little fracture in the right clavicle," a report on the Argentina Football Association's website said.

"With the allowance of his club Newcastle, Jonas will stay in Buenos Aires to be treated by the national team's medical staff. He should rest for 20 days and will have the rehabilitation treatment.”