Have you recovered from the Champions League and Europa League drama?

Good, it's time to get back to the Premier League as top-flight football returns.

Domestic football is back on the agenda this weekend with Brighton and Crystal Palace renewing their rivalry.

Not only are bragging rights up for grabs, but both sides are looking nervously over their shoulders at the top-flight drop zone.

And both would love to send the other closer to the Championship trapdoor.

And that got us thinking: Which derby is the best in world football?

Check out numbers 50 down to 41 here and then we'll get cracking on with the next batch of 10...

40. Kaizer Chiefs vs Orlando Pirates

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Far and away South Africa's biggest derby since the two sides first locked horns in 1970 when Pirates old-boy Kaizer Motaung came back from a spell with NASL side Atlanta Chiefs to create his own side.

The Soweto pair have since become the most popular teams in South Africa, dominating the landscape until the arrival of cash-rich Mamelodi Sundowns came and upset their duopoly.

The pair have played in stadiums across South Africa, which has sadly led to two disasters, one at the Oppenheimer Stadium in 1991 which saw 42 people killed in a crush, the other seeing 43 people die after 120,000 fans were let into the 60,000-capacity Ellis Park.

39. America vs Deportivo Cali

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To Colombia next for a clash that rarely fails to produce some sort of tension either on the stands.

It took no less than one meeting for the clubs to clash off the field. The pair met for the first time in 1931, when America had two goals disallowed. A leafleting campaign (no, really) followed, which angered the authorities so much that America received a one-year suspension, which led to them going on tour.

38. Barcelona vs Emelec

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The port city of Guayaquil in Ecuador plays host to another South American doozy, dubbed the Shipyard Derby.

Emelec were founded by the American owner of the Ecuador Electric Company, so it was perhaps a surprise when the floodlights at their stadium failed with Barcelona 3-0 up in a 1949 derby. The hosts came back to draw 3-3, but the visitors felt that something was rotten in Denmark and their rivalry cranked up a few notches.

In recent years we've had Barcelona ultras knock out a linesman with a chunk of sink from the stadium toilets, matches played behind closed doors and more red cards than you can shake a stick at.

37. Hamburg vs St Pauli

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St Pauli are perhaps the original hipster's choice, a club that sits in the red light district that takes a stand against hooliganism, racism and homophobia, while also having a miniature train that goes around the ground serving hot dogs.

But their matches against Hamburg are rated by German police as the most dangerous, with trouble quick to flare up whenever the two meet.

The 2011 clash saw St Pauli claim their first derby win for 34 years, but ended in riot police pepper-spraying the away end.

36. CSKA Sofia vs Levski Sofia

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One of a number of 'Eternal Derbies' from across Europe, this Bulgarian-flavoured one sparked into life under the Communist rule of the late 1940s, with the pair meeting in the Soviet Army Cup in 1949 and 1950.

The two Sofia sides soon became the dominant forces in Bulgarian football, with clashes between the two sets of fans becoming a regular occurrence.

This peaked at the 1985 Bulgarian Cup final, when a number of iffy refereeing decisions culminated in an every-man-for-himself brawl which saw the Bulgarian Communist Party disband both teams and handed out lifetime bans for six players.

One of these was a young Hristo Stoichkov, but thankfully the bans were eventually scrapped and we could enjoy El Pistolero's proficiency in front of goal for Barcelona, Parma and the Bulgarian national side for many years to come.

35. Dynamo Moscow vs Spartak Moscow

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Plenty of history goes into this rivalry.

Back in the 1940s Dynamo had a patron in secret police chief Lavrentiy Beria, so when the four Starostin brothers - Spartak's key men - were arrested after being accused of plotting to assassinate Joseph Stalin, it only added fuel to the fire.

Nikolai Starostin was able to return from the Siberian gulag on one piece, becoming Spartak chairman and wasting no time in telling his players how important the derby was.

In a city packed with clubs - CSKA, Torpedo and Lokomotiv to name but three more - this is easily the biggest rivalry of the lot.

34. Benfica vs Sporting

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Another case of the haves versus the have-nots.

Sporting began life in 1906 bankrolled by the Alvalade family, a far cry from the student-run operation at Benfica who were founded two years earlier.

And it didn't take long for Sporting to use this financial clout, snagging eight Benfica players before the first derby in 1907.

The pair's rivalry goes on more than a hundred years (
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The pair also beefed over the signing of Portuguese great Eusebio, with Sporting claiming that Benfica benefited from sloppy paperwork by fascist police.

Despite this long-running beef violence between the two sets of fans is rare, but it still provides Portugal's most entertaining clash.

33. Dinamo Bucharest vs Steaua Bucharest

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Another rivalry which has its roots in the Soviet Union, with Dinamo backed by the state's secret police and Steaua by the army.

The two sides were dominated Romanian football during the 20th century, with Dinamo making their mark on Europe by reaching the European Cup semi-finals in 1984, whiel Steaua winning the competition in 1986.

The fall of the Soviet Union and end of the cold war has done little to simmer tensions between the two, with the 1997 clash at Steaua which ended in away fans setting petrol drums on fire, being a highlight.

32. Portsmouth vs Southampton

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Readers not based on the south coast of England might not know quite why this particular rivalry is so fierce.

A number of factors have gone into the rivalry which simmered along until the 1970s, beginning with dockland disputes in the 1930s between the Royal and merchant navy. The diverging economic situations between the two cities added fuel to the fire in the years since, with Harry Redknapp's mid-noughties flip-flopping between the two clubs further souring the situation.

The fact that the pair do not meet on a regular basis means that when they do now meet, fireworks are guaranteed.

31. Esteghlal vs Persopolis

Fans pack the Azadi Stadium, where both sides play their home games (
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A Persopolis fan pops the volume up a notch (
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You'll do well if you can find a more raucous place to watch football than the Azadi Stadium in Iran for the Tehran derby.

The salt of the earth people at Persepolis began to take umbrage with the elite stylings of Esteghlal when Iranian football got popular in the 1970s .

You're never too far from a scrap between the two sides, with a 2000 on-pitch brawl leading to a post-match riot in which 250 buses were destroyed and 60 arrests made - including three players from each team.