Jordanian FA general secretary Fadi Zureikat has claimed that Hayel was left in a "semi-coma and with hypothermia" after being forced to drink "several litres" of water in an attempt to aid him in providing a urine sample following the 1-0 defat to Iraq on Tuesday.
"Ahmad Hayel arrived at the hotel after the doping test (in a) semi-coma, and with hypothermia. The doping control room was too cold. The player was given water to drink for four hours (only water without any liquids containing salts or electrolytes)," Zureikat has been quoted as saying.
"Ahmad Hayel began vomiting (and received) no medical care presence from the AFC. No ambulance was called for the player. He was suffering low blood pressure, and we had to take the player back to the hotel by private car, in a wheelchair, while he was unconscious."
Team doctor Adel Skirji told the Jordanian FA's website: "The player was one of two players chosen by lots for a mandatory dope test.
"Ahmad Hayel was unable to give a sample, which is normal as he had lost a lot of fluid during the game and needed more time to rehydrate.
"When (testing officials) tried to making him drink lots of water it quickly reduced his temperature and he began to throw up and feel dizzy."
However, the AFC insist that proper procedures were followed.
"The AFC would like to clarify that the doping test of Jordanian player jersey number 10 – Ahmad Hayel – was conducted as per the AFC Anti-Doping Regulations after their team’s AFC Asian Cup Australia 2015™ Group D match against Iraq in Brisbane," a statement read.
"The player was unable to complete the required procedure due to his dehydrated condition.
"He had some dizziness, felt nausea and vomited after his second attempt, which was an hour after his first attempt, to give urine sample for the test and as such the AFC Medical Officer, Dr. Paisal Chantarapitak decided to discontinue the doping control procedure on the said player."
Dr. Chantarapitak added that there was nothing unusual about the test and rejected suggestions that Hayel had been forced to drink large amounts of water.
"As per the procedure, the AFC Medical Officer always recommends players selected for doping control to drink water as per normal practice, especially for the player who has played for 90 minutes," he said.
"It is at the player’s discretion to follow the recommendation or not. The player is not forced to drink plenty of water in short time.
“The assistant team doctor of Jordan national team was present during the entire doping procedure."