West Ham United are set to offer Domingos Quina a new long-term deal in an attempt to fend off interest from other Premier League sides, sources close to the club have told ESPN FC.
ESPN FC reported last week that long-term suitors Manchester United had scouts watch Quina in international action for Portugal under-19s against Spain, while Arsenal have also been credited with an interest.
Quina joined West Ham from London rivals Chelsea in 2016 after spending three seasons at Stamford Bridge, with the Hammers beating a host of Europe's top clubs to his signature.
The 17-year-old midfielder made his first-team debut in Europa League qualifying last season and he has gone on to make two appearances in the EFL Cup this term.
Quina's current deal at West Ham has just over 18 months to run and the club are keen to secure him on a new five-year contract to end potential interest.