The Blues boss says the striker has a chance of playing against the French champions and feels his team need their goalscorers to complete a comeback
The striker has not featured for Chelsea since hobbling off early on in the 6-0 win over Arsenal, but he is the Blues' joint second highest scorer this season with 11 goals.
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When asked if he could be fit, he told reporters: "Let's see, let's see.
"I wanted [Samuel] Eto'o to be on the bench on Saturday and play 15 or 20 minutes but he was not fit enough.
"He did not train with the team on Sunday, so we have to see.
"Maybe I will pick him. But to risk a player, you need to have minimum conditions to take that risk.
"If you think he's going to be out after 10 minutes of the game, you can't take that risk. If there is a minimum of conditions of risk, then yes."
Chelsea go into the game 3-1 down after an eventful first leg in the French capital and Mourinho hinted at an attacking approach for his team.
“We need to score goals. If we don't score a minimum of two goals, we are out. We know that,” he added.
"If we can have everybody available who can give us a chance to score goals, then let's do that."