Chelsea and England winger Callum Hudson-Odoi was arrested at the weekend after police responded to a report of an "unwell woman", British media reported on Monday.
Police officers and an ambulance attended Hudson-Odoi's London home in the early hours of Sunday.
The 19-year-old was arrested and taken into custody before being released and bailed.
"Police and London ambulance service were called at 03:53hrs on Sunday, 17 May to a report of an unwell woman," a police spokesman said, adding that the woman was taken to hospital.
The reports said Hudson-Odoi was in breach of coronavirus lockdown guidelines. Chelsea have declined to comment, according to the reports.
Hudson-Odoi made a full recovery after becoming the first Premier League player to test positive for COVID-19 in March.
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