Originally Posted by Niles Crane

The only mistake he made was not giving a penalty for the foul on Nani, prior to his dive and handball.

The goal was perfectly valid, it was Gomes' fault. The ref played advantage instead of giving a freekick, so the ball was still in play when Gomes dropped it and Nani scored. Where was the ref's whistle for Gomes to take a freekick? Nowhere. And Gomes' imaginary freekick was nowhere near where the offence occurred either.