Under-pressure Chelsea manager Andre Villas-Boas conceded a 1-1 FA Cup draw at home to Birmingham represented another "quite poor" result.

Villas-Boas: Cup draw another 'quite poor' result

Villas-Boas is having a tough first season at Chelsea following a run of unimpressive results and the increased scrutiny of owner Roman Abramovich in recent weeks.

It looked to be getting even worse when David Murphy put Championship side Birmingham in control of Saturday's FA Cup fifth-round clash and Juan Mata missed a penalty.

Daniel Sturridge forced the replay with a second-half equaliser, but Villas-Boas accepted it was not the scoreline the club were looking for.

"It was a quite poor result of course," he told ESPN.

"It was an excellent performance in the second half though, 1-1 is not what we were expecting but it gives us another chance at Birmingham to continue trying to win the trophy.

"The aggression was there and the desire and ambition, but I think Birmingham matched us today in that sense."

Asked if results would change Abramovich's support of the current regime, Villas-Boas said: "No, it's not conditional."

Birmingham boss Chris Hughton was pleased with his side's efforts against top-flight opponents and is not concerned about adding a replay to an already congested fixture list.

"We had to cope with a couple of things today, none more so than a very, very good Chelsea team," Hughton said.

"But for large parts of the game we were able to cope with their problems and have our own attacks.

"This is a changing room that wants to play games, this is an exciting time to play cup competitions against Premier League sides."