Referees usually raise eyebrows with controversial bookings or dubious decisions.
But one Russian official is attracting attention for a very different reason.
Ekaterina Kostjunina has set pulses racing off the pitch with her sexy social media snaps.
The 21-year-old has built up more than 5,600 Instagram followers with her scantily-clad posts and sultry selfies.
See more photos below…