Chelsea's title challenge for this season's English Premier League battle is getting tougher after this weekend Jose Mourinho's men suffered a surprise defeat over Sunderland.
The home side made a bright start on that tie as they already got in front after just 12 minutes of play through Samuel Eto'o.
However, that lead only lasted for a while as Sunderland managed to get themselves back on level terms with an effort from Connor Wickham on 18 minutes.
Drawing 1-1 in the first 45 minutes, Chelsea tried hard to take a more aggressive approach as they wan't to keep that pressure on current league leader, Liverpool.
The Blues' attempt turned out to be a failure though as instead of taking the lead, they found themselves going behind when eight minutes from time, Fabio Borini scored the winner from a spot kick.