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The 22-year-old defender was among the four right-backs that England boss Gareth Southgate announced for his 26-man squad on Tuesday.
Trent started for England yesterday as the Three Lions claimed a 1-0 victory over Austria at the Riverside Stadium.
However, the Reds right-back picked up the injury to his left leg late on when he cleared the ball down the pitch.
Trent was unable to see out the remainder of England's win as he was withdrawn after he signalled to the bench over his injury concerns.
The Athletic now reports that Trent underwent a medical assessment on Thursday and suffered a grade two quad tear.
The publication added that the England international will exit the Three Lions camp on Thursday night as he faces a recovery period of four to six weeks.
Match of the Day presenter Gary Lineker reacted to the news on Twitter, saying it was a "shame" England had lost Trent ahead of Euro 2020.
The 60-year-old former England international tweeted: "What a blow for @TrentAA and @England. Losing the best attacking right back in World [sic] football is such a shame."
Speaking after the England match, Southgate admitted he was concerned over Trent's injury.
The 50-year-old said: "We're going to have a little look. It's not good to see the way he went off but we'll have to assess it over the next 24 hours.
"I think it's a thigh [injury]. The medical team are still assessing it. We just have and see. It's not a good sign. We'll know more in the next 24 hours.
"Let's see how Trent is first and then we'll go from there. We don't know the full extent but the last thing you want is to see him go off in the way he did."
England will return to action against Romania on Sunday at the Riverside Stadium ahead of the start to their Euro 2020 campaign next weekend.
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