Spanish side Celta Vigo may have to may have to travel to Celta Vigo without center-back Joseph Aidoo as the Ghanaian remains doubtful for Sunday's encounter.
The 25-year-old had train away from the main team with 72 hours to crucial game.
Aidoo limped off in the 2-0 victory over Levante after suffering a hamstring injury and had to be replaced by Nestor Araujo.
Despite returning to training, he is yet to join the group as his fitness level is being observed by the Sky Blues medical team.
He has been an important part of Celta Vigo's recent run as they chase a European place with four games left.
The former KRC Genk player has played 23 matches in La Liga this season.
He joined the club last season after a title-winning campaign with Belgium outfit Genk.