The statement claims that both players are asymptomatic and are both in good health but as per the health regulations, are now entering a period of self-isolation and quarantine as to limit the spread of the virus.
El primer equipo se sometió a la pruebas previas al inicio de la pretemporada, excepto los internacionales y Diego Costa y Arias, que dieron positivo en un test PCR realizado en sus vacaciones y se encuentran guardando cuarentena ➡ https://t.co/oL7YTrTISY
— Atlético de Madrid (@Atleti) September 3, 2020
Neither player has been in contact with their teammates as both underwent their test on their holidays, with neither yet returning to pre-season training with the rest of the Atleti first-team squad.
Both underwent their PCR tests elsewhere and each returned positive results, so neither will return to the Spanish capital until they are medically proven to be free of the virus.
The club’s pre-season will begin on 4 September with Atleti sitting out the first round of La Liga action on 12-13 September due to their participation in European football in July, and will instead play their first game on the weekend 19-20 September.