Newcastle United may have concluded one of their biggest deals of the summer. While it remains to be seen quite what Newcastle can do in the transfer market at the end of the season amid FFP constraints, Eddie Howe has already expressed his delight this week. Yes, Lewis Hall can complete his permanent move to St James’ Park from Chelsea should results go Newcastle’s way this weekend. Still, that’s not what we’re getting at. Indeed, on Thursday, Joelinton signed a four-year contract on Tyneside. There had been fears the Brazilian, so crucial to the way Howe plays, had already played his final g…