Former Blues youth player Scott Sinclair put the Welsh outfit into the lead five minutes before the break, and a dogged second half performance from Brendan Rodgers’ men looked to have guaranteed them three points.
Despite Ashley Cole being dismissed with a couple of minutes remaining for two yellow cards, right back Jose Bosingwa popped up to grab a 93rd minute equaliser and ensure the Londoners did not leave empty handed.
“I think if the goal would have come earlier, we would have found the second, because we had that motivation and control of the game,” he added.
“But we left it late, we persisted and found the first goal, but that came late and it did not give us enough time to get the second.”
When asked about whether Ashley Cole deserved his red card, Villas-Boas added:
“It was a difficult challenge. Ashley went all in for it because he thought he could win the ball, Dyer just anticipates the challenge but I think Ashley touched him.
“We will have to see it again to see if there is any chance of rescinding the card.
Chelsea are now seven points behind Tottenham in third place, and host Manchester United at Stamford Bridge on Sunday.
By Gareth McKnight