The Cherries left-back picked up the problem playing for Australia in their World Cup play-off against Syria and boss Eddie Howe admits the club have concerns about the severity of the injury.
"Brad is the major worry. He looks like he has got a nasty injury but we don't know the full extent. He has had one scan but we want to get it confirmed," he said.
"It looks like he could be out for a period of time. I don't have an exact time for you but he seems to have a hip problem related to his quad muscle."
Meanwhile, Scotland midfielder Ryan Fraser has picked up a hamstring injury, as did Norway forward Josh King, while on international duty but neither are expected to be long-term absentees.
Defender Tyrone Mings has been out with a back problem, while forward Callum Wilson continues to step up his rehabilitation following a serious knee injury.
Provisional squad: Begovic, Ake, Francis, A Smith, Daniels, L Cook, Stanislas, Pugh, Surman, Afobe, Defoe, Boruc, S Cook, Boruc, Gosling, Mousset, Arter, Ibe.