Jason Roy was forced to leave the field during England's Cricket World Cup clash against West Indies as he suffered a hamstring injury at the Rose Bowl.
The opener, who came into the match in fine form after hitting 153 against Bangladesh in England's last outing, was in immediate discomfort chasing a single in the outfield, which left captain Eoin Morgan expressing concern for the 28-year-old.
England duly confirmed to reporters at the ground that Roy was being assessed for "tightness in his left hamstring".
A subsequent update revealed he would not return to the field, meaning he could not bat higher than number seven in his side's chase.
James Vince - the only back-up batsman in England's squad - took Roy's place in the field.
If the injury keeps Roy on the sidelines, Vince would be the prime candidate to come in at the top of the batting order alongside Jonny Bairstow in future matches. All-rounder Moeen Ali, omitted for the second game running on Friday, is the other option should Roy be ruled out.