Referee Neil Swarbrick made an error in awarding a goal-kick to Swansea rather than a deserved corner.
Bakayoko has attracted some criticism for some quiet performances in recent weeks, with Frank Lampard admitting that he is not convinced by the Frenchman.
Luiz and Conte fell out following the Blues' 3-0 defeat to Roma in October, with the 30-year-old struggling to win back his place and remaining on the bench for Saturday's draw at Liverpool.
After the game it is normal and right to apologise for what happened during the game. The ball went slightly above the bar.
Pedro added another shot on 19 minutes together list as the Swans dug in deep to halt the early Blue onslaught. But both lack the necessary pace to worry the ex-Arsenal goalkeeper.
Despite their utter dominance, the hosts had to wait until the 55th minute before making the breakthrough.
"I can tell you the players not available", Conte replied when asked for a team news update before Swansea, per football.london.
Chelsea's failure to grab a second could have cost them towards the end, when they became a little nervous as Swansea pushed forward in search of the unlikeliest of equalisers.
Mason decided the words were sufficient to alert Swarbrick who raced to the dugout and then sent Colette to the stands.
Alonso once again proved to be one of the most threatening defenders of the league as he nearly netted for Conte's side around 70 minutes inside the second half. We knew when he came here he would not be able to play Wednesday, but this gives him good training time ahead of Stoke.
"I didn't see that the situation change and I was frustrated with the fourth official".
"Beating Swansea has kept the momentum going".
Fabianski then tipped over a powerful Morata header.
Ki Sung-yeung, Roque Mesa and Tom Carroll are all tidy distributors of the ball, but none of them played probing or penetrative passes here.
As for Newcastle, Rafa Benitez is set to be without Jamaal Lascelles, Christian Atsu and Paul Dummett for the trip to Stamford Bridge.