Porto coach Sergio Conceicao admits he's considering his future after their thrashing by Champions League opponents Liverpool.
Porto lost at home 1-5 to the Reds on Tuesday night.
Afterwards, Conceicao blasted: “Even a youth team like the under-19 team that drew with Liverpool in the Youth League today would do a little more than we did today. With the president, after this result, we'll see if the players listen to the coach or not.
"The difference in values exists and we equal it when we have a good organisation, when there is intensity, that this game, the best in the world, deserves. I didn't get the message across and this disaster happened. This disaster, stop. For me, it's shameful.
"We can't concede goals like that. Against a team like this, so incisive in the game... Losing balls in forbidden zones... It was very bad. I want to take on that responsibility. We have a lot to rethink if the players are willing to deal with the coach they have."