article_snippet: Thiago Silva leapt high, and powered a fantastic header looping over the head of Thibaut Courtois into the far corner of Chelsea's net, dumping Jose Mourinho's team out of Champions League.
article_snippet: It was, undoubtedly, a brilliant piece of play from the Brazilian, but immediately the inquest began as to how Chelsea had allowed the centre back so much space.
article_snippet: The answer, it seems, is that captain John Terry, rather than marking Thiago Silva opponent, was tussling with Thiago Silva central defensive partner as the corner came in.
article_snippet: As the corner comes into the box, John Terry grabs hold of Gary Cahill, who is running towards John Terry own goal .
article_snippet: John Terry is clearly grappling with John Terry team-mate as John Terry attempts to move towards Thiago Silva .
article_snippet: John Terry did eventually reach Thiago Silva, but by then the Brazilian had jumped high to head the ball home .
article_snippet: With the ball in the air, John Terry can be seen grappling with Gary Cahill, as both Chelsea men get caught under the ball.
article_snippet: John Terry did eventually find a way past John Terry colleague, but arrived too late and couldn't get off the ground, leaving Thiago Silva free to head home.
article_snippet: Thiago Silva celebrates the goal that knocked Chelsea out of the Champions League at the last 16 stage .
article_snippet: The Chelsea players trudge back towards the halfway line, despondent after twice conceding a lead .
highlights_snippet: Gary Cahill was running back towards Gary Cahill own goal to defend corner .
  
highlights_snippet: John Terry was trying to get towards Thiago Silva as ball came in .
  
highlights_snippet: John Terry pulled back Gary Cahill, slowing both men down, leaving Thiago Silva to score .
  
highlights_snippet: CLICK HERE to read Martin Samuel's full match report .