Olic has appeared in both of Croatia's Euro 2004 games

Olic, 24, tested for the pain-killing substance methylpresnisolone after the 2-2 draw with France on 17 June, when he was used as a late substitute.

But Uefa's control and disciplinary body ruled the player was not at fault and can play against England on Monday.

The Croatian Football Federation (HNS) has been fined �4,335 for not following the correct anti-doping procedures.

This is simply a case of the correct people not being informed A Uefa spokesman

Olic suffered a rib injury during a Euro 2004 warm-up game against Denmark on 5 June and was given a pain-killer which contained methylpresnisolone.

HNS doctor Zoran Bahtijarevic - responsible for anti-doping matters - has received an official warning from Uefa and Boris Nemec, who treated Olic, a reprimand.

Uefa ruled that the two doctors failed to complete and submit the necessary Therapeutic Use Exemption form (TUE) which would have been deemed acceptable.

"Methylpresnisolone is a pain blocker - this is simply a case of the correct people not being informed," said a Uefa spokesman.

"We would have accepted it if we'd been informed - unfortunately we weren't because something went wrong with the administration and there was a mix-up between the Croatian doctor and the doctor treating the player.

"It was the doctor's duty to inform the Croatian FA doctor - and that's why they've been fined and warned rather than the player."

HNS has three days to appeal against the fine.