Although manager Gareth Southgate admits it's a "longshot," Harry Maguire could play for England in their first Euro 2020 match on Sunday against 2018 World Cup finalists Croatia.
Since damaging ankle ligaments in Manchester United's Premier League loss to Aston Villa on May 9, the 28-year-old central defender has not played.
On Thursday, he returned to England's camp and trained again on Saturday.
Maguire, who was a major part in England's run to the 2018 World Cup semi-finals, where they were defeated by Croatia, could make an appearance, Southgate told ITV.
"It is a long shot but he is further ahead than we thought he might be at this point so we are certainly not going to rule it out," Southgate told ITV on Friday.
Liverpool captain Jordan Henderson also trained with the group as he builds fitness, but Maguire's United team-mate goalkeeper Dean Henderson -- set to be back-up to Jordan Pickford this summer -- sat it out due to a knock.