The Red Devils manager has revealed that "it's not good news" for the England defender after he was stretchered off during his side's 2-1 win over the Gunners on Sunday
The former Blackburn Rovers star turned on his ankle as he attempted to halt the advancing Theo Walcott during United's 2-1 victory over the Gunners and was subsequently stretchered off.
Ferguson expects the versatile England international to miss around three weeks and admits that Michael Carrick was also struggling with hamstring problem during the second half of the game at the Emirates Stadium.
"It's not good news for us," he said.
"I think Jones will be out for a few weeks - it's ankle ligaments.
"Carrick was feeling his hamstring in the second half and he just had to sit in the middle of the pitch."