Benfica are now joint top of the Portuguese league. The Lisbon outfit travelled to Tondela and won by a single goal without truly impressing.
A header from Ferro from Grimaldo's corner after 19 minutes gave Benfica the three points.
Tondela tried their very best to get an equaliser, but 'The Eagles' were solid in defence and did not let them have clear chances.
Bruno Lage's men did not really try and add to their lead and they played out the clock to claim victory.