Manchester City manager Kevin Keegan is seeking talks with UK Sport after striker Christian Negouai had to break his Ramadan fast to take a drugs test.
The Muslim player had to give a urine sample to UK Sport officials who were carrying out a random test and thus had to break his vow not to eat or drink during daylight hours.
Negouai was named as the player fined £2,000 for missing a drugs test last season and Keegan believes he is tested more frequently because of this.
Negouai missed a random test last season
The City manager added that he advised the 25-year-old to give a sample because of the scrutiny currently surrounding drugs in football after Rio Ferdinand's missed test.
"Because of what has happened with Christian, he gets drugs tested three or four times - he was forced to drink water to give a sample and he didn't want to do it," said Keegan.
"I am going to have talks with UK Sport. If we are honest, Christian is very upset. I said to him that on one hand if you don't take the test it looks suspicious, but on the other hand it is his religion.
"This is where football and work cross over and we all have to be understanding. I am going to have a chat with him because they will probably test him again."
But UK Sport's chief executive Richard Callicott said: "We respect the beliefs of all religious groups and are sympathetic to their needs when it comes to testing.
"In no circumstances would a sportsman or woman be forced to drink water.
"They are always provided with sealed, non-alcoholic, caffeine-free drinks to aid them in producing a sample, but the use of these is no more than a recommendation."
The Muslim player had to give a urine sample to UK Sport officials who were carrying out a random test and thus had to break his vow not to eat or drink during daylight hours.
Negouai was named as the player fined £2,000 for missing a drugs test last season and Keegan believes he is tested more frequently because of this.
Negouai missed a random test last season
The City manager added that he advised the 25-year-old to give a sample because of the scrutiny currently surrounding drugs in football after Rio Ferdinand's missed test.
"Because of what has happened with Christian, he gets drugs tested three or four times - he was forced to drink water to give a sample and he didn't want to do it," said Keegan.
"I am going to have talks with UK Sport. If we are honest, Christian is very upset. I said to him that on one hand if you don't take the test it looks suspicious, but on the other hand it is his religion.
"This is where football and work cross over and we all have to be understanding. I am going to have a chat with him because they will probably test him again."
But UK Sport's chief executive Richard Callicott said: "We respect the beliefs of all religious groups and are sympathetic to their needs when it comes to testing.
"In no circumstances would a sportsman or woman be forced to drink water.
"They are always provided with sealed, non-alcoholic, caffeine-free drinks to aid them in producing a sample, but the use of these is no more than a recommendation."
