Captain John Terry is in contention for Chelsea's crucial Champions League Group G clash with Porto on Wednesday night.
Terry suffered an ankle injury against Tottenham and missed last Saturday's loss to Bournemouth which leaves Jose Mourinho's position as manager under scrutiny.
Midfielder Ramires is also available, but striker Radamel Falcao remains out despite taking a limited part in training on Tuesday.
With Dynamo Kiev expected to beat Maccabi Tel Aviv, Chelsea would finish top with a win, second with a draw and third with a defeat, plunging into the second-tier Europa League.
Jose Mourinho has derided the competition previously - won by his predecessor Rafael Benitez when interim boss in 2013 - but the winners now are awarded a place in the Champions League.
"I know what you mean," said Mourinho, who appeared to concede defeat in his side's bid for the Premier League top four, and with it a place in the Champions League, after the loss to Bournemouth.
"I know that in this moment it looks to win the Europa League is an easier way to be in the Champions League next season, than to finish in the top four.
"But there is another possibility, which is to win the Champions League.
"It's harder than winning the Europa League, obviously, yes. But this is a competition where we are."
Mourinho pointed to Chelsea's match statistics, saying "records" had been broken in three consecutive matches, but then pointed to the lack of goals.
It was a comment which could be interpreted as criticism of his strike force.
Diego Costa has seven goals since January and just four this season and has been a substitute for the last two games, with Eden Hazard deployed as a "false nine".
Loic Remy is a peripheral figure and Radamel Falcao is injured, having struggled to make an impact on loan.
"We run and we run and we work more than ever and at certain intensity that we never did before," Mourinho added.
"Our levels of ball possession are much higher than before too. Our chances are higher than ever.
"Our number of goals is lower than ever. You have the numbers, you read the numbers."
Provisional squad: Courtois, Begovic, Ivanovic, Fabregas, Zouma, Rahman, Ramires, Oscar, Hazard, Mikel, Traore, Kenedy, Pedro, Remy, Costa, Matic, Willian, Cahill, Terry, Blackman, Azpilicueta, Loftus-Cheek.
