Lionel Messi unimpressed being singled out for drug testing by UEFA.

The Barcelona star was one of five players along with Jordi Alba, Claudio Bravo, Ivan Rakitic and Andres Iniesta to undergo the testing before their Champions League tie with PSG.

However, what upset the Argentine international is unlike the other four, he was the only one needing to provide two samples, blood and urine. Afterwards Messi took to his Instagram account to reveal he came under particular scrutiny. “Doping control. Of the five chosen, I was the only one who had to give urine and blood samples... bit strange isn’t it?" he wrote.

Spanish authorities have denied there was anything unusual about the request for Lionel Messi to provide two samples for drug testing on Monday.

The Spanish Agency for Health Protection in Sport (AEPSAD),hit back at criticism from Lionel Messi, and insisted that the Barcelona star is being treated in the same way as any other player.

"Messi passed his urine tests and blood tests as is normal every week for athletes in Spain," an AEPSAD spokesman said.