Borussia Dortmund score four again, Van Persie & Djourou

Borussia Dortmund players celebrate
Borussia Dortmund have won all six games so far this season

With La Liga and Serie A getting under way this weekend, some of the other interesting stories from across Europe might have gone under the radar.

From rampant Dortmund to unlikely heroes, a reminder of what Manchester United are missing and Sami Hyypia's daunting job, let BBC Sport tell you have you may have missed.

Dortmund Tuch into the goals again

Borussia Dortmund became a second favourite team to many people under eccentric but brilliant coach Jurgen Klopp and his unique brand of attacking, energetic football.

Thomas Tuchel replaced the man they inventively called Kloppi in the summer and if anything the team have become more exciting to watch.

Dortmund's 4-0 win over Ingolstadt on Sunday was the third consecutive game they have hit four goals.

Thomas Tuchel
Thomas Tuchel used to manage Mainz, the former club of predecessor Jurgen Klopp

They beat Champions League side Borussia Monchenglach by the same scoreline on the opening day. And then on Thursday they came back from 3-0 down to beat Odd 4-3 in an, erm, odd game in the Europa League.

In fact, four of their six competitive games so far under the new boss have seen four or five goals.

They will have the chance to continue that run when they host Odd on Thursday in the Europa League second leg.

Good day for ex-Arsenal players in Germany

Johan Djourou
Johan Djourou scored once in his spell at Arsenal from 2004 to 2014

On Saturday, former Gunners striker Nicklas Bendtner, perhaps best known for his overinflated opinion of himself and sponsored underwear, rescued a draw for Wolfsburg against Cologne with a late strike from a yard out.

But in an even more ridiculous twist, defender Johan Djourou, who made an average of nine league appearances a season in his decade at Arsenal, scored an 89th-minute winner for Hamburg.

With his side drawing 2-2 against Stuttgart, the Swiss won the ball, pirouetted, ran the ball out of defence and played it to a team-mate before inexplicably carrying on running in Forrest Gump fashion and picking the ball back up in the box to fire home.

Are you watching, Manchester?

Just as Chelsea fans chanted to taunt Manchester United as ex-Red Devils target Pedro scored on his Blues debut, so might Fenerbahce fans have chanted the same.

After United struggled to a 0-0 draw against Newcastle on Saturday, their old striker Robin van Persie scored his second goal in two games for his new Istanbul side - this time in a 1-1 draw at Caykur Rizespor.

Even more frustrating for Old Trafford fans might be that the goal was assisted by Nani, another summer signing from - you guessed it - United.

Oussama Tannane scores four and stops

Within 41 minutes of the game at Cambuur Leeuwarden, Oussama Tannane became the first Heracles player to ever score four goals in a Dutch top-flight match.

The 21-year-old - who scored a sublime 40-yard free-kick last weekend - left it at that though, although his team-mates chipped in with another couple of goals in the 6-1 away win.

He was named Voetbal International's player of the week, which is nice for him.

Not a dream start for Carpi

Sampdoria's Martin Eder celebrates
Sampdoria were on course to score 12 goals at one stage

Carpi were promoted during the summer in a fairytale rise. The small-town club, whose stadium has a capacity of 4,144, were playing in the Italian fifth division five years ago.

After 37 minutes of their first ever Serie A match, at Sampdoria, they must have been wondering what they had let themselves in for though, trailing 5-0.

Luckily for them, the Genoese side eased off a bit and Carpi got two consolation goals.

Hyypia might be checking the small-print

Sami Hyypia was named FC Zurich manger on Friday, although with the caveat that he would not take over until the end of the month.

The Finn might be wanting to delay that a bit longer after his new side lost 5-2 at home to Luzern on Saturday to slip to second bottom of the Swiss Super League, above only Vaduz, a club that only plays in the country's league because Liechtenstein doesn't have a league.

Trouble in Bosnia

A Bosnian top-flight match between Celik Zenica and FK Sarajevo was delayed for 20 minutes after fans and riot police clashed, according to Reuters.

Sarajevo fans fought police early in the second half, with officials taking players down the tunnel and suspending play.

The game eventually ended 1-1.

Bosnian media said fans for hosts Zenica aimed monkey chants at Sarajevo's Nigerian forward Harmony Ikande and that fans threw flares at each other.