Chelsea manager Jose Mourinho says defeat away at Maccabi Tel Aviv would put his side in danger of not making it through the group stage of the Champions League.
The Blues are second in Group G of the competition with seven points with Dynamo Kiev in third on five points.
And the Portuguese has urged his players to take all three points from tomorrow's game at the Sammy Ofer Stadium.
"Tomorrow is simple, if we lose we are in trouble," Mourinho said.
"We would have to rely on others. If we get a draw we can qualify in the last game but we can't be first, and tomorrow if we win, we could qualify depending on the other result, so this game is very important for us.
"We are focused on what we have to do, we are very disappointed with the bad results we had for a long period of time and we need to keep getting results for our happiness and our pride, and for the people who support us.
"If we play like we are playing then I think we have a chance to keep in the same direction.
"We did well against Norwich and in previous games we lost. I liked the confidence against Norwich, under the pressure of needing to get the result but playing, 0-0 at half-time but keeping the same way of playing, so I think the players are getting their confidence back and hopefully tomorrow we can do more."