Chelsea were held to a draw throughout the first half by a well organised League 2 team, Shrewsbury, in their fourth Round Capital One Cup match before Didier Drogba scored the opener early in the second half.
The Blues took the lead three minutes after the restart when Drogba latched on to Mohamed Salah’s pass and slammed his shot past Jayson Leutwiler.
That joy was short-lived as Jermaine Grandison turned in Willian’s cross. Shrewsbury scored a deserved equaliser 13 minutes from time when substitute Andy Mangan stabbed in.
Just four minutes later, however, Shrewsbury were dealt a cruel blow as Grandison, who provided the assist for the goal, nodded into his own net under pressure from Drogba to salvage a 2-1 win for the Premier league leaders.
The late own goal spared Chelsea embarrassment against the League Two side to reach the League Cup quarter-finals.