Friday 13 October 2017 16:37, UK
Mohamed Salah could become the first Egyptian to play in a Liverpool-Manchester United Premier League fixture on Saturday.
To date, there have been 48 nationalities feature in this great rivalry since the Premier League era began - Salah looks set to make that 49 at Saturday lunchtime, live on Sky Sports Premier League.
And from Armenia to Zimbabwe, there have been 20 nations who have had just one player feature in a Liverpool-United fixture.
We've compiled the list, now all you need to do is try and work out who that player is before flipping the card!
Let us know how you got on by tweeting @SkySportsPL or by leaving your comments below...
