Real Madrid star Cristiano Ronaldo looked less than impressed when he was pulled aside to do a random drug test after his side's Champions League match against Paris Saint-Germain.

The three-time Ballon d'Or winner was approached by UEFA's anti-doping control officers minutes after Madrid's goalless draw at Parc des Princes on Wednesday.

Ronaldo, who recently became Madrid's leading goalscorer, was caught on camera expressing his annoyance at having to do a drugs test.

In the clip, the 30-year-old is seen throwing his arms in the air and heard saying, "Siempre yo," which translates as "always me".

Watch Ronaldo get frustrated in the video below: