West Ham United are concerned Jarrod Bowen is out of their Europa League trip to Sevilla on Thursday.
The winger was forced off in Saturday's 1-0 defeat at Liverpool after taking a whack to his heel and is a major doubt for first leg of their last-16 tie in Spain.
West Ham confirmed yesterday that an initial scan revealed no serious damage to his achilles but Bowen is still suffering from significant swelling, says the London Evening Standard.
The 25-year-old will undergo further scans this week but sources at West Ham fear it is unlikely he will be fit to face Sevilla.
Being without Bowen for their biggest game of the season would be a major blow to West Ham. The 25-year-old has been their best player since the turn of the year and has scored seven goals in the last 11 games.