Didier Drogba's 22nd Premier League goal of the season had given Chelsea an early lead at Ewood Park on Sunday. However, El-Hadji Diouf punished the Blues for failing to take their chances in the first half with a superb header 20 minutes from time, with the match ending 1-1. Allardyce told Sky Sports 1: "It was really disappointing to go behind after a promising start. "But then we held out well without really creating much quality in the final third. "We put that right in the second half with the goal." The Rovers boss made some tactical changes following the restart, which helped get the hosts back into the match. "I told our wide men to push further on to their full-backs, because we were sitting too deep and could not get support to our frontman," Allardyce said. "We moved the ball better on what was a difficult surface. "I was really pleased with the second-half performance and deserved the draw in the end." Allardyce was jeered for some of his substitutions during the second half. The Blackburn boss said: "The result is what they wanted. "The fans always feel you have got to throw caution to the wind. "What we did in how we used the substitutes has got us the result, but the supporters are entitled to their opinion." Allardyce maintained today's result was not about doing a favour to his old friend Sir Alex Ferguson, the Manchester United manager. "It is for us, not for Sir Alex," said the Rovers boss. "It was a point towards our own safety and a good performance with a result." Chelsea boss Carlo Ancelotti admitted it had been a tough week following the disappointment of their Champions League exit against Inter Milan, managed by former Blues favourite Jose Mourinho. "It has been a hard week, but every week is hard as you have to prepare for the games," the Italian said. Ancelotti continued: "It was a difficult game, with a lot of fight on the pitch. "We tried to play football, but lost some confidence as they put us under pressure and won more second balls. "We tried, but were unlucky." The Chelsea coach, however, maintained all was not lost, despite his side now down in third place, five points behind leaders Manchester United, although with a match in hand against bottom club Portsmouth next week. "Now is a difficult moment, but we do not have to lose our confidence," he said. "We are behind now and have to catch up, but I think we can still do it. "The pressure was already on us as we needed to win, but we did not. "It is more difficult now, but we have to think about the game on Wednesday [at Portsmouth] and have to come back to win."
