With doubts over the 20-year-old's fitness after sustaining knee ligament damage on Wednesday, reports now claim that the youngster will not be replaced.
England have up until 24 hours before they kick off against Italy to replace Oxlade-Chamberlain should they need to, but for now Roy Hodgson is determined to take a gamble on his young starlet in the hope he can make a full and speedy recovery.
Hodgson told a fan forum: "We will do everything in our power to keep him [in the squad], Our medical team are optimistic and he is optimistic. We can't say how long for certain it will take him to recover but obviously he will get very extensive treatment."
The injury is set to sideline the Arsenal man for up to two weeks, meaning the first game he would realistically be available to play would be the match against Costa Rica on the 24th of June - a game that cold effectively be England's final game of the tournament.
It certainly appears a gamble to keep a player with an injury of that magnitude in the squad, but Hodgson has no like-for-like replacement available within his stand bys and for that reason the 66-year-old may consider the gamble a risk worth taking.
Prior to limping off with injury, Oxlade-Chamberlain was arguably the man of the match in Miami on Wednesday and has proved his worth to the team.
Hodgson said: "He was undoubtedly our best player in the time he played and it would be a major blow if we lose him."
Clearly the England boss is prepared to go to any length to have the 20-year-old play his part in Brazil, and although as it stands the youngster looks to be travelling with the squad, don't be surprised if he is replaced at the eleventh hour.