Match summary
Porto came from behind to win 2-1 away at Rio Ave, with the winner arriving in stoppage time. It was goalless at half-time.
Costinha put Rio Ave ahead from the penalty spot in the 52nd minute, Wenderson Galeno equalised from the penalty spot in stoppage time, and Iván Marcano won it from a corner in stoppage time.
The chances backed that up: Porto created 2.45 expected goals (xG) from 10 shots to Rio Ave's 1.28 from 6.