Appeared in ten of West Ham United's opening eleven Premier League matches...Underwent surgery to repair a long-term knee problem in early December 2020, ruling him out for the next four-plus months...Returned with an assist for Pablo Fornals in the 3-2 Premier League win at Wolverhampton Wanderers on 5 April 2021...Started a 3-2 home win over Leicester City in the next Premier League fixture before missing the remainder of the campaign...Totaled 13 appearances, including 12 in the Premier League, and two assists.

Started four of West Ham United's opening five Premier League matches before being sent-off at Aston Villa on 16 September 2019 and losing his place...Appeared in eight Premier League matches in succession between 28 December 2019 and 19 February 2020, including the 4-0 New Year's Day home win over AFC Bournemouth in David Moyes' first game back as manager...Featured just twice following the Premier League restart, both times as a substitute...Totaled 18 appearances in all competitions, including 17 in the Premier League, and one assist.

Registered an assist for Chicharito in West Ham United's 3-1 EFL Cup second-round win at AFC Wimbledon on 28 August 2018...Grabbed his first Premier League assist of the season by setting up Lucas Perez for West Ham United's second goal in a 3-1 win over Cardiff City at London Stadium on 4 December 2018...Was a regular starter over the closing months of the season and ended the campaign with 27 appearances in all competitions, 22 of them starts.

Started the opening Premier League match of the season - a 3-0 defeat at Manchester United on 13 August 2017...Scored his maiden goal for the Club in a 3-0 Carabao Cup third-round win over Bolton Wanderers at London Stadium on 19 September 2017...Grabbed assists in the Premier League fixtures with Tottenham Hotspur and Swansea City at London Stadium in late September 2017...Started ten of West Ham United's opening 20 Premier League fixtures, in addition to five substitute appearances...Sent-off and banned for six matches for spitting in the 2-0 Emirates FA Cup fourth-round defeat at Wigan Athletic on 27 January 2018...Returned with an assist in a 3-0 Premier League victory over Southampton at London Stadium on 31 March 2018...Ended the season with 33 first-team appearances, one goal and three assists in all competitions.

Joined West Ham United from Greek champions Olympiacos for a £6.2m fee on 8 August 2017 - the same day the Club signed Andre Ayew...Started West Ham United's first Premier League match of 2016/17 at Chelsea, and the first-ever top-flight fixture at London Stadium - a 1-0 win over AFC Bournemouth - in August 2016...Suffered a knee injury in the EFL Cup victory over Accrington Stanley on 21 September 2016, which ruled him out until late November...After appearing in a home Premier League defeat by Arsenal on 3 December 2016, a further knee injury sidelined the left-back until late February...Finished the season with 15 first-team appearances to his name, including 13 in the Premier League and two in the EFL Cup.

Born in Lille in November 1993...Spent five seasons with nearby RC Lens as a schoolboy before joining Valenciennes at the age of 14 in 2008...Continued his development with Lens and was rewarded with a first-team debut while still a teenager in a Coupe de France defeat at Istres in January 2013...Established himself as Valenciennes' first-choice left-back in Ligue 1 – France’s top-flight – in 2013/14 and totaled 28 appearances in all competitions...Still just 20, Masuaku attracted the attention of a host of top European clubs and was snapped up by Greek giants Olympiacos in July 2014...Played 40 times in his debut season in Greece, including eight times in European competition...Masuaku’s European debut for the club was a notable one, as he scored in a 3-2 UEFA Champions League group-stage win over the previous season’s runners-up Atletico Madrid in September 2014...Tasted double glory in his first season in Greece as Olympiacos lost just four times to runaway with the Superleague by 12 points, while Skoda Xanthi were beaten 3-1 in the Greek Cup final...Having again qualified for the Champions League, Masuaku featured against Arsenal and Bayern Munich in the 2015/16 group stage...Domestically, he played 24 times as the Red-Whites romped to the Superleague title by 20 points, losing just one of their 30 league matches, but a final defeat by AEK prevented the defender from securing a second straight domestic double...International football-wise, was capped by France at both U18 and U19 levels.