The international body overseeing tennis competitions expressed their concern after Tunisia ordered one of its players not to participate in a tennis match against a Jewish player.
The Tunisian Tennis Federation ordered their best player to withdraw from a match against an Israeli player during a tournament in Uzbekistan.
Malek Jaziri was scheduled to play Amir Weintraub of Israel, on Friday, in the quarterfinals of the ATP Challenger Tournament in Tashkent.
He pulled out before the match and Weintraub advanced to the semifinals.
"After a meeting this afternoon with the Ministry of Youth and Sports, I regretfully inform you that you are not allowed to play against an Israeli player," the federation told Jaziri.
Sports Ministry spokesperson Sadok Touati confirmed that the federation sent an email to their player after a consultation with the ministry.
Amir Jaziri, Malek’s brother, said he and his brother were afraid that the decision could affect a player's career. Malek is ranked 169 in the world.
Arab countries have for decades participated in boycotts of Israeli athletes as a protest for the plight of the Palestinians.
Shlomo Glickstein, the director of the Israel Tennis Association, said in a statement that such incidents are sad.
"It is sad for athletes, who are caught in these situations that end up hurting their personal career," he said.
The International Tennis Federation said they were investigating the incident.