Newcastle United manager Rafael Benitez has suggested that Paul Dummett could be out of action for the next two weeks.
The defender pulled up with a hamstring complaint and was forced off after just seven minutes of his side's opening Premier League defeat at home to Tottenham Hotspur.
The Welshman's centre-back partner, new signing Florian Lejeune, was also withdrawn with an injury in the first half before Jonjo Shelvey was sent off and the hosts succumbed to a 2-0 defeat.
Speaking after the game at St James' Park, Benitez told Sky Sports News: "We don't know [the prognosis]. It's too early. The main thing is we lost two players and we had to adapt.
"We have to wait but a couple of weeks, one of them, for sure. Maybe Dummett. I don't know."
Up next for Newcastle is a Premier League meeting with fellow newly-promoted side Huddersfield Town at the John Smith's Stadium in next Saturday's early kickoff.
