FC Porto hit top spot after becoming the first team to beat Moreirense in the Primeira Liga in Moreira de Conégos for nine months.
The Porto hero was 17-year-old Rodrigo Mora. Coach Vítor Bruno gave the attacking midfielder his full debut and Mora responded by providing an assist for Samu before scoring himself to make it 2-0.
André Franco netted a late third to confirm the victory and take Porto to the top of the table, at least until Sporting and Benfica play later this weekend.