West Ham's new left-back Arthur Masuaku will not be eligible for their Europa League qualifier with Astra Giurgiu, because he has already played for Olympiakos in Champions League qualifying.

However, if the Hammers progress, the former France Under-19 defender can then play for them in the group stages.

United say he has signed a four-year contract in the story on their website, but a three-year contract on their tweet. So who knows how long the deal is for?

West Ham's new signing Arthur Masuaku played for Olympiakos for two years, winning the Greek title each time, after his 2014 move from Valenciennes in his native France.

“It’s a big honour for me to be part of this club,” said the 22-year-old. “I was speaking with my agent about some opportunities, but when he told me about West Ham and also the coach, I didn’t think twice, so in my mind, it was West Ham.

“Now, to be able to play with players like Dimitri Payet, it’s going to be crazy. I can’t wait to play with him and also all the rest of the team.

“For me, the Premier League is the biggest league in the world. When I was 18, my target was to come here, so now I am here, I have to prove myself to the fans and to the team so that I can play for this big club.”

Image source, Getty Images

West Ham have signed Olympiakos left-back Arthur Masuaku, 22, on a four-year deal for an undisclosed fee.

Speaking of times, you were embarrassed in sport...

Former Newcastle defender Steven Taylor made his debut for Portland Timbers reserves on Saturday night and it did not go well.

He scored an own goal and was substituted after an hour with his team 3-0 down. Once he came off, their fortune changed and they scored four times to beat LA Galaxy II 4-3.

On the back of Juan Mata being subbed on and off...

John Dykes: I was once deployed as an emergency left-back and subbed off after eight minutes, 2-0 down...

Matty Rogers: Brought on a sub for Under-13s match with about three minutes left. Manager admitted he didn't want me playing.

Skyser: Being run out first ball of a school cricket match whilst being the non-striking batsman

Image source, Rex Features

The Football League, sorry the EFL, returned this weekend.

Aston Villa lost 1-0 to Sheffield Wednesday yesterday, with QPR beating Leeds 3-0.

On Saturday, Nottingham Forest played out a thrilling 4-3 win with Championship new-boys, and East Midlands neighbours, Burton Albion.

In League One, Ched Evans scored on his return to football as Chesterfield drew 1-1 at Oxford.

Check out the stories you might have missed in the EFL this weekend.

In Scotland, Scott Sinclair had a Celtic debut to remember, coming off the bench to score a late winner against Hearts.

Rangers drew 1-1 with Hamilton on Saturday, with Dundee, Partick Thistle and Motherwell all winning their Scottish Premiership openers.

The other Premier League teams in friendly action yesterday were Liverpool and Southampton.

The Reds lost 4-0 to Mainz, a day after beating Barcelona by the same scoreline.

Jurgen Klopp named a slightly weakened team against one of his old clubs, although Emre Can, Jordan Henderson, Adam Lallana and Divock Origi all started.

Southamptonbeat Athletic Bilbao 1-0 at St Mary's, with Shane Long scoring the only goal.

Image source, Getty Images

West Ham played what was meant to be the first game in the London Stadium yesterday, losing 3-2 to Juventus in a glamour friendly.

Andy Carroll scored twice to bring the Hammers back from 2-0 down, but Simone Zaza netted the winner.

However, since arranging the friendly, West Ham had to play a Europa League qualifier at their new ground - beating Domzale on Thursday.

Image source, Getty Images

Speaking of Premier League centre-backs being injured in pre-season friendlies yesterday...

John Terry came off with a head injury against Werder Bremen. 

However, he wrote on Facebook afterwards: "Just wanted to let everyone know that I'm OK. I came off as a precaution after I got a knock to my head and neck during the game."

Image source, Getty Images

Arsenal could have a defensive crisis after Gabriel's injury late on in last night's 3-2 friendly win over Manchester City.

The Brazilian centre-back had to go off on a stretcher in (the appropriately named) injury time. Fellow centre-half Per Mertesacker is a long-term absentee.

It would leave Calum Chambers and Laurent Koscielny as their only fit senior centre-backs and Gunners boss Arsene Wenger is concerned about putting Koscielny back in after Euro 2016 duty.

After the friendly in Gothenburg, Wenger was asked about Gabriel. "He’s in pain. Let’s hope the pain is not a sign of bad news. The only thing we have to know now is how big the damage is with his ligament."

Image source, Reuters

On the back of Juan Mata being substituted on and off in the same game yesterday, we want to know times you've been embarrassed in sport.

Tweet us using #bbcsportsday or comment on our Facebook pages.

A club statement read: "FC Internazionale Milano confirms that it has parted company with head coach Roberto Mancini by mutual agreement.

"Inter would like to place on record its thanks to Roberto for the work carried out with the team since joining in November 2014.

"Last season the club led Serie A until the Christmas break, ending the season in fourth place and qualifying for the Uefa Europa League.

"We thank Roberto for the work and commitment he has shown the club over the past 20 months."

Simon Stone
BBC Sport

Inter Milan have announced the departure of manager Roberto Mancini.

The former Manchester City boss will be replaced by Frank de Boer, who is believed to have agreed a three-year contract.

Mancini's position had been in doubt due to his misgivings over Inter's summer transfer business.

De Boer, 46, left Ajax in the summer and had been linked with the Southampton job following Ronald Koeman's departure for Everton, another role with which the Dutchman had been linked.

Image source, Getty Images

Inter Milan have just announced the departure of Roberto Mancini as head coach by "mutual agreement".

Image source, Rex Features

Another big talking point from yesterday was also on Manchester United (don't worry, we'll start talking about other teams soon).

Juan Mata came on as a substitute with half an hour left and then Jose Mourinho, who sold him to United from Chelsea, brought him off in injury time. Afterwards the Portuguese said it was because Mata was the smallest player on the pitch and he wanted to prepare for long balls.

But ex-England midfielder Danny Murphy is not convinced.

"I don't buy Mourinho's excuse," he said. "They have a lot of history at Chelsea, and now he has embarrassed Mata in front of his supporters.

"You don't do that unless you are trying to send the player a message and I cannot see how Mata can stay after that."

Image source, Getty Images

Soon before the game, United confirmed that Juventus midfielder Paul Pogba was coming for a medical before competing his transfer.

The fee will be 105m euros, or £89m. 

(It would have worked out at £80.7m the day before Britain voted to leave the European Union.)

Apparently the medical is going to last a couple of days so expect this to drag on for a bit longer.

Image source, Getty Images

Zlatan Ibrahimovic scored the winner yesterday as Manchester United won their 21st Community Shield with a 2-1 victory over Leicester.

Jesse Lingard gave United the opener with a fine solo goal, dribbling about 40 yards before firing home, but Jamie Vardy levelled when he took advantage of Marouane Fellaini’s Kamikaze backpass.

But Ibrahimovic grabbed the headlines, of which there will be many this season, with a header which went in off the post.

You can watch the highlights in this entry (if you are in the UK).

The Sun

Zlat'll do for me, say the Sun

Image source, .

The Daily Star

The Star is a pun-free zone today, and they also report on Gabriel's nasty-looking injury for Arsenal.

Image source, .