'We will not see him' - Celtic’s Martin O’Neill says USMNT’s Cameron Carter-Vickers is out for the season with an Achilles injury, leaving World Cup hopes in doubt

O'Neill delivered the disappointing news during his pre-match press conference ahead of Celtic's weekend fixture against St. Mirren, revealing that the 27-year-old center back faces a lengthy rehabilitation process following the injury sustained during Celtic's 2-1 Europa League victory over Sturm Graz last month.

"We will not see him," O'Neill said to reporters before Saturday's match at St. Mirren. "I think it might be April before he's even on grass. Funnily enough, I did ask him yesterday, did he think he would be ready for the World Cup? And he said he thought that would be very doubtful."

The American defender had made 13 appearances across all competitions this season before his injury, bringing his total to 172 appearances since joining the club initially on loan from Tottenham Hotspur in September 2021.

Celtic will now be without its American center-back until at least April as he recovers. The club also has U.S. international Auston Trusty available, with the defender recently featuring for the national team in November. Celtic return to action on Thursday against Dutch side Feyenoord after a 1-0 win over St. Mirren on Saturday.