Chelsea have confirmed that Andrey Santos has returned Vasco da Gama on loan.
Santos, 18, joined the Blues in the January transfer window for a deal worth £16million. The midfielder is yet to feature for Chelsea after being given permission to represent his country at the Under-20 South American Championship, a tournament he won and finished as top scorer.
It had been hoped that Santos would be included in Graham Potter's first team, but a second work permit application failed to be accepted. The club has now confirmed that the teenager has returned to Vasco to play in Brazil's Serie A.