Bertrand Traoré

On 26 January, he made his debut, coming on in the 67th minute for fellow Chelsea loanee Lucas Piazon.

He replaced Mike Havenaar after half-time; in the 67th minute, he scored Vitesse's second goal of the game which was assisted by fellow Chelsea loanee, Christian Atsu.

On 6 April, Traoré scored his second goal of the season in a home match against Ajax which ended in a 1–1 draw.

On 12 April, Traoré put Vitesse in the lead for the first time in the match against Cambuur, although Vitesse lost the game 4–3 in the end.

Bertrand Isidore Traoré (born 6 September 1995) is a Burkinabè professional footballer who plays as a forward or a right winger for La Liga club Villarreal and captains the Burkina Faso national team.

After beginning his career at Auxerre, Traoré finished his development at Chelsea, and made his debut in a one-and-a-half-year loan at Vitesse in the Eredivisie.

In August 2010, it was reported that Traoré had joined the Chelsea Academy from French club Auxerre, rejecting Manchester United in the process.

In January 2011, however, Traoré had not yet signed for the club, and in January 2012 the club confirmed that Traoré was not and had never been a Chelsea player, but had appeared once for the club's youth team in a friendly as part of a six-week trial earlier in the season.

On 17 July 2013, however, he made his debut, as a trialist, in a pre-season friendly against the Singha All Stars.

On 31 October 2013, Traoré officially signed a four-and-half-year contract with Chelsea.

He signed a contract for Chelsea's senior team in December 2013, and completed the transfer on 1 January 2014.

On 2 January 2014, Traoré signed on loan for Eredivisie side Vitesse.

On 29 March 2014, Traoré scored his first goal, against Heerenveen.

On 7 July 2014, it was confirmed that Traoré would stay at Vitesse on loan for the 2014–15 season.

Traoré scored his first goal of the season in a 4–1 victory over Willem II on 18 October.

While he primarily played on the right wing during his first loan to Vitesse, around December, Traoré made the switch from the right to being the lone striker up top leading up to him scoring on 14 December in a 1–1 draw against Groningen.

In the following games, Traoré scored his first brace in a 4–0 win over Ajax in the KNVB Cup, then three days later scored his first league brace in a 3–0 win over Heracles.

On 22 June 2015, Traoré received a work permit and therefore clearance to play for Chelsea for the 2015–16 season onwards.

He was given the number 14 shirt, previously worn by André Schürrle.

After a season in the Premier League with Chelsea, he was loaned back to the Netherlands to play for Ajax in 2016, and a year later signed for Lyon for €10 million.

He then played for İstanbul Başakşehir on loan until 2023.

A full international from the age of 15, Traoré represented Burkina Faso at five Africa Cup of Nations tournaments.

On 16 September, Traoré made his Chelsea debut in a 4–0 victory against Maccabi Tel Aviv in the UEFA Champions League group stage, coming on as a 77th-minute substitute for Ruben Loftus-Cheek.

His Premier League debut came on 5 December, playing the final seven minutes of a 0–1 home loss to AFC Bournemouth.

Traoré scored four goals in five matches in early 2016.

On 31 January 2016, Traoré scored his first Chelsea goal in a 5–1 victory at Milton Keynes Dons in the FA Cup, confirming the result five minutes after coming on in place of Diego Costa.

Two weeks later, after again replacing Costa, he scored his first Premier League goal in a game of the same result against Newcastle United.

On 5 March, with Costa rested ahead of a Champions League game, Traoré was given a start in a home Premier League match against Stoke City and scored from 20 yards to open a 1–1 draw, but his performance was described as "mixed" due to "failing to control the ball in the box on a couple of occasions and being caught offside needlessly".

On 12 August 2016, Traoré signed a new three-year contract with Chelsea and joined Ajax on loan for the 2016–17 campaign, which reunited him with former Vitesse manager, Peter Bosz.

On the following day, Traoré made his league debut off the bench, replacing Kasper Dolberg in a 2–2 home draw against Roda JC.

On 16 August, Traoré made his first start in a Champions League play-off round against Rostov, a 1–1 draw.

On 15 September, Traoré scored his first Ajax goal in a Europa League group stage tie against Panathinaikos, scoring Ajax's equaliser in a 2–1 win.

Just over a week later, he scored his first league goal in a 5–1 win over PEC Zwolle.

On 3 November 2016, Bosz criticised Traoré in an interview stating that there's "nothing wrong with his attitude, but his form is not good".

Traoré scored four goals in the 2016–17 UEFA Europa League, including two goals in the first leg of the semi-final against his future club Olympique Lyonnais.

He played every minute of the final, with Ajax losing to Manchester United 2–0.

On 26 June 2017, Traoré signed for Ligue 1 side Olympique Lyonnais on a five-year contract for an initial transfer fee of €10 million (£8.8 million), plus potential add-ons.

Chelsea reportedly inserted a buy-back clause into Traoré's contract and would receive 15 per cent of any profit made by Lyon on the fee should they sell Traoré in the future.

Chelsea would also have first refusal should Traoré move again.

In his first season in France, Traoré formed an attacking trio with Mariano Díaz and Memphis Depay, all of whom reached double figures in league goals.