Antony burst into tears after Real Betis had sustained the defeat in the final of the Conference League.
The Spanish side stood before the break, but Chelsea fought back to win 4-1.
Antony, who is on loan from Manchester United, was seen full -time.
Jadon Sancho rushed to his old teammate during the celebrations to comfort him.
Various betis stars also became crying, including former West Ham duo Adrian and Pablo Fornals.