Chelsea Boss Frank Lampard has praised the work ethic of Pedro; with the Spaniard having made just his 12th appearance of the season on Tuesday
"I agree he was outstanding in work ethic and players look up to him for what he has done. Always a goal threat," the Chelsea head coach told a news conference.
"Parts of the season have been difficult. He was in the team at the start, got injured and then got out of the team, but what he has shown, particularly in recent weeks, is a real desire in training, to look sharp, to be giving advice and giving the place a lift with his body language.
"He can be one of our most important players until the end of the season. He is an infectious player."
"Both have got an Achilles issue," he said. "Willian hopefully is not too bad, that is what he is reporting there so we will see how he is tomorrow.
"Kovacic's feels slightly worse. Hopefully not too drastic, so we'll see."