Ukraine striker Andriy Shevchenko has been rated as having a "50/50" chance of being fit for his side's Group D match against England tomorrow.
The former Chelsea frontman has been a doubt for the final group fixture after missing training yesterday with a knee problem.
"Andriy Shevchenko's condition as of 11pm lights-out last night was satisfactory," national team doctor Leonid Mironov said. "There is less fluid in his knee joint, but the knee tissue is still swollen and he cannot fully bend his knee joint.
"Andriy will have the last word as he knows his knee better than anyone else. This morning the chances that Shevchenko will play against England are 50/50. I think that Andriy will do his best to play."
England require one point to qualify for the quarter-finals of the tournament alongside France.