Opinions on Mateus Fernandes

Hi everyone! I'm writing this to ask people who watch reguralry West Ham matches how is Mateus Fernandes doing. Here in Portugal, since World Cup is knocking at door, some of us are talking about the possibility of Mateus Fernandes being brought from the Sub-21 team to our A squad, since he seems to be doing fairly well in the Premier. At least, I heard he had potencial to be a great player later on his career.

For people who watch West Ham matches, what are your opinions about him? Would you think he has space in Portugal's midfield?

Thanks for any answer!