By Scott Saunders FROM WEMBLEY – There’s no doubting Manchester United’s need for signings if they’re to compete in the new season. Saturday saw progress made on two more arrivals from Bayern Munich – Noussair Mazraoui and a long-term target of theirs, Matthijs de Ligt. Both players will arrive in Manchester and complete moves in the coming days after long pursuits – and in De Ligt’s case it’s been years in the making, dating back to when new manager Erik ten Hag was his manager at Ajax. They’re two moves completely necessary for progress. A central midfielder is needed too at the least and wi…