Manchester United winger Antony left the Old Trafford pitch on a stretcher after suffering what looked to be an ankle injury in the game against Chelsea.
The Brazilian was caught before the half-hour mark by a challenge from Chelsea defender Kalidou Koulibaly, who got the ball with his sliding tackle but inadvertently followed through.
After demanding a free-kick, the 23-year-old was left writhing in pain inside the Chelsea area until being met by United's medical staff.
Clearly in pain, Antony attempted to stand but was unable to carry on. LIVE: United vs Chelsea latest from Old Trafford He eventually left the pitch on a stretcher, replaced by Marcus Rashford and met by Erik ten Hag near the dugout who offered a consoling message to the winger, who looked devastated.