Lens boss Francis Gillot has a number of injury worries as he looks to lead his team into the UEFA Champions League.
Lyon seem certain to land yet another Ligue 1 title, but the battle is on for second place.
Lens slipped up slightly as they were held at home by struggling Sedan at the weekend and Gillot is worried by injuries to Daniel Cousin, Milan Bisevac and Vitorino Hilton.
Cousin has a knee complaint, Hilton is being plagued by a groin problem and a back injury is worrying Bisevac.
"The Bisevac injury doesn't seem too serious, but Cousin's knee remains blocked and Hilton has groin pain," said Gillot.