article_snippet: Referee: Jonas Eriksson .
article_snippet: Basle were reduced to 10 men in injury time after experienced defender Samuel was dismissed for a second bookable offence for an off-the-ball incident with Aboubakar.
article_snippet: The clash left both men in a heap
article_snippet: but it was the Brazilian right back
article_snippet: After a lengthy stoppage in play
article_snippet: Basle defenders backed off  
article_snippet: Frustration boiled over for Samuel in the final moments of the match as Samuel was involved in an altercation with Aboubakar off the ball.
article_snippet: The Argentine defender was shown a second yellow card for The Argentine defender troubles as Porto marched into the last eight.
highlights_snippet: Walter Samuel was sent off for Basle in injury time for a second yellow .