Chelsea missed the chance to go four points clear at the top of the English Premier League with a 1-1 draw at Hull on Tuesday.
Defender Steven Mouyokolo gave Hull a surprise lead in the 30th minute and, although Didier Drogba equalised 12 minutes later with his 20th goal of the season, Chelsea were unable to convert concerted pressure into more goals.
The draw left Chelsea on 55 points, three clear of defending champion Manchester United. Both teams have played 24 games, the same as third-place Arsenal, who were another four points back and at Chelsea on Sunday.
Chelsea had already missed a couple of chances when Mouyokolo got his first goal for Hull. He outjumped a cluster of Chelsea defenders to head in a corner by Stephen Hunt.
Terry was jeered throughout by Hull fans following last week’s newspaper allegations that he had an affair with an England teammate's former partner.
But Chelsea continued to press and Drogba, playing his first Chelsea game in a month following his stint at the African Cup of Nations with Ivory Coast, scored direct from a free kick just outside the area.
Jozy Altidore missed with a headed chance for Hull and teammate Amr Zaki troubled the visiting defence, but Drogba missed at the other end as the home team held on for a valuable point.