While West Ham United signed well-known players such as Joe Hart, Pablo Zabaleta, Marko Arnautovic and Javier Hernandez during the summer transfer window, the addition of Sead Haksabanovic went slightly under the radar as he was a more low-profile buy.

The Irons signed the winger on a five-year deal from Swedish side Halmstads BK in August, and even though he is 18 years of age he will hope to make a big impact for the east London outfit this season after some stand-out performances in Sweden.

The Montenegro wide-man, who Transfermarkt value at just £1.35million, played 72 minutes of the Hammers’ 3-2 win against Swindon Town in their first EFL Trophy group game last month, and he will be hoping he can push for a spot in Slaven Bilic’s first team squad sooner than he may have expected following the club’s disastrous start to the Premier League campaign.

To boost West Ham supporters’ knowledge of their new man, here are five things they need to know about Haksabanovic…

Debut

He may have only celebrated his 18th birthday in May, but Haksabanovic is relatively experienced for his age having made more than 70 first-team appearances in total.

That record is largely due to the early faith that Halmstads BK showed in the teenager as they handed him his full Allsvenskan debut when he was just 15 years and 11 months old, as a substitute in a 3-0 loss to IFK Norrkoping in April 2015.

It is a clear indication of how mature the player is both on and off the pitch, and he certainly wouldn’t be fazed if he was thrown into the Irons’ starting line-up in the near future.

Manchester United trial

When you make your debut at the age of 15 you are always going to attract curious glances from elsewhere, and it proved to be the case for Haksabanovic in August 2015 when one of the biggest clubs in world football – Manchester United – came calling.

The Red Devils invited the teenage attacker to Old Trafford for a trial and he trained alongside the likes of Marcus Rashford and Timothy Fosu-Mensah before United decided against handing him a contract.

He has an eye for goal

Primarily playing as a left winger, Haksabanovic is required to bring a goal threat and he has certainly proven that he does exactly that during his short career to date.

The 18-year-old scored eight goals in 30 league appearances to help Halmstads BK secure an immediate return to the Allsvenskan for the club in the 2016 campaign, before netting four in 18 outings in the top flight this year.

Even though Halmstads won just two of those league games, the teenager showed that he isn’t afraid to have a pop at goal after unleashing 50 shots in that period – only three players produced more.

Montenegro international

Even though he was born in Sweden and played for the nation at Under-17 and U-19 levels, Haksabanovic decided to switch his allegiance to Montenegro – the country his father was born in – earlier this year.

Manager Ljubisa Tumbakovic wasted no time in calling the impressive 18-year-old into the full squad either, and the winger made his debut in the 4-1 2018 World Cup qualification win against Armenia in June before being named in the latest squad for the fixtures against Kazakhstan and Romania.

The nation currently sit second in Group E and while they still have a chance of finishing top, they could also miss out on the top-two finish they require to at least secure a play-off fixture, with themselves, table-toppers Poland and third-placed Denmark currently separated by just three points.

He could be the new Payet

Much like Payet did for West Ham before things turned sour between him and the club last year, Haksabanovic loves to operate on the left-wing.

The Irons will hope that the 18-year-old can go on to have a similar impact to the one the Frenchman did, especially as he is also comfortable with both feet and is effective at cutting inside from the left and getting a shot away at goal.

While it will be difficult to be as influential as Payet was for the Hammers, the potential is certainly there.