Marcus Rashford has travelled with the Manchester United squad to London for the League Cup final against Newcastle on Sunday.
Rashford sustained an apparent ankle injury in the second half of United's Europa League play-off win over Barcelona on Thursday night and was substituted in the 88th minute.
The England international is United's top goalscorer this season with 24 goals - Rashford's best tally in his eight seasons with United.
Also read: 'Only people at the club know' - interview with Marcus Rashford
United medical staff assessed Rashford yesterday and today and the 25-year-old has been named in manager Erik ten Hag's travelling squad.
When asked about Rashford's potential availability on Friday, Ten Hag said: "I don't know. Players are now coming in.
"We have to do investigations, medical, of course, yesterday we did. So straight after a game most of the time you can't say, you have to wait for a 100 per cent diagnosis. So let's do the medical, the work, we have to wait."
United boarded a train at Stockport station on Saturday afternoon ahead of the 4.30pm kick-off at Wembley tomorrow.
Provided Rashford is available to start, Ten Hag has to decide whether to retain Wout Weghorst, scorer of only one goal in 11 United starts, or recall a winger.
Antony replaced Weghorst at half-time against Barcelona in midweek and scored United's winner in what was the Brazilian's first appearance since February 4.
Long-term absentees Donny van de Beek and Christian Eriksen are both out and so is Anthony Martial, who has not started a game since the Manchester derby win over City on January 14.
United are permitted to name up to 12 substitutes in Europa League matches but will be restricted to the usual nine substitutes in domestic competition against Newcastle.
Confirmed United travelling squad members: De Gea, Heaton, Butland, Dalot, Wan-Bissaka, Varane, Martinez, Lindelof, Maguire, Shaw, Malacia, Casemiro, McTominay, Fred, Sabitzer, Elanga, Fernandes, Sancho, Garnacho, Antony, Rashford, Weghorst
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