Chelsea boss Roberto di Matteo admits their Champions League defence hangs by a thread after defeat to Shakhtar Donetsk.

The European champions crashed to a 2-1 defeat to Shakhtar on Tuesday evening as John Terry's return to the side went awry at the Donbass Arena to leave them facing a real fight to qualify for the knockout stage.

"We need to win our two home games remaining for sure," the Blues boss said.

"The consolation tonight is that Juventus drew in Denmark.

"It just shows how the Champions League is a very competitive competition.

"But certainly, we need to win our home game against Shakhtar."