A string of Premier League clubs had scouts in the crowd to watch Benfica's Champions League tie with PSV amid growing interest in England Under 21 winger Noni Madueke.
Teenager Madueke has begun the season in blistering form, scoring five times in seven games and also setting up another goal for PSV.
Two of his strikes have helped his Dutch club to the brink of the Champions League group stages and into Wednesday night's play off tie at Estadio da Luz, which Benfica edged 2-1.
Noni Madueke's performances have attracted the interest of some of Europe's top clubs
His former club Tottenham and long-term admirers Manchester United and Leicester all had representatives at the game.