AP, Lisbon :
FC Porto slipped to its first home defeat of the Portuguese league season on Sunday, losing 1-0 to Estoril.
Estoril midfielder Evandro converted a penalty for the winner in the 78th minute after he was fouled in the area by Eliaquim Mangala, who was sent off.
Porto was left in third place, two points behind Sporting Lisbon.
Leader Benfica can extend its two-point advantage over Sporting on Monday when it hosts Guimaraes.
Estoril, which has only lost once away from home this season, strengthened its hold on fourth place.
