Chelsea are 2-1 up against Sunderland at the Stadium of Light in the Premier League.
The Blues were stunned in the 14th minute when Jozy Altidore turned John Terry and put the ball past Petr Cech with his left foot.
However, Jose Mourinho's side restored parity just three minutes later when Frank Lampard headed in Eden Hazard's corner.
Lampard could have doubled his tally before the half-hour mark, but he saw his shot go wide.
However, moments later Petr Cech was called into action as he kept out Andrea Dossena's effort.
Chelsea ended the half on a positive note as they went 2-1 up with 10 minutes remaining, thanks to Hazard cutting inside and bending his shot past Vito Mannone.
