Serbian startup Nordeus has performed an FA Cup style giant-killing, by toppling EA off of the top of the Facebook sports game league table with its title Top Eleven.

Beating FIFA Superstars into second place, the game gives wannabe José Mourinhos the chance to take on their Facebook buddies by building and training a squad over a season lasting a month.

It is being played by a staggering 700,000 Facebookers per day, with 2.8 million monthly active users and 80,000 newbies signing up every week.

Tomislav Mihajlovi, Nordeus COO, said: "We’re stunned to see our company overtake one of the world’s biggest third-party games developers to create Facebook’s most played sports game.

"Top Eleven has been live for just a year, but already we’ve passed this significant milestone and added millions of players. The final whistle’s not been blown yet, so we’ll continue to innovate and add to what we, and our users, think is already a great game."

The game is free, although you can make micro-transactions to buy better players and so on. You can also pick up some free credits by clicking on the ads within the game.

You can sign up today over at Let us know how you get on.