Mbappé scored the first hat-trick of his first team career on 14 December 2016 in the 7–0 rout of Rennes in the Coupe de la Ligue round of 16 at the Stade Louis II[21][26] – the first hat-trick scored by any Monaco player in the competition since Sonny Anderson in 1997.[27] On 11 February 2017, Mbappé scored the first Ligue 1 hat-trick of his career in the 5–0 home win over Metz; at 18 years and two months he became the youngest player to score a Ligue 1 hat-trick since Jérémy Ménez did it for Sochaux back in 2005.[28] On 21 February, Mbappé scored Monaco's second goal in the 40th minute with a half-volley after receiving Fabinho's long ball over the opponents' back line (it was his first ever UEFA Europa League or UEFA Champions League goal and he became the second youngest French scorer in UEFA Champions League history behind Karim Benzema) in the UEFA Champions League round of 16 first leg match against Manchester City, which Monaco lost 5–3.[29][30] On 5 March, Mbappé scored two first-half goals in the 4–0 Ligue 1 home win over Nantes to bring his Ligue 1 career tally to ten goals and become the youngest player in the last 30 years to hit the Ligue 1 ten-career-goals mark. His brace against Nantes on 5 March brought up his 2016–17 season tally to nine Ligue 1 goals and five Ligue 1 assists in just 822 minutes of Ligue 1 football.[31][32] On 11 March, he scored a goal in the 2–1 Ligue 1 home win against Bordeaux to register his seventh Ligue 1 goal in his last four starts.[33] In the UEFA Champions League round of 16-second leg match at the Stade Louis II on 15 March, he made the score 1–0 for Monaco in the 8th minute by turning home Bernardo Silva's low cross from close-range (his 11th goal in his past 11 matches in all competitions) to help Monaco beat Manchester City 3–1 (aggregate score 6–6) and advance to the quarter-finals on the away goals rule.[34] In the quarter-finals against Borussia Dortmund, Mbappé won a penalty and scored two goals as Monaco won the away leg 3–2.[35] In the second leg, Mbappé opened the scoring as Monaco won 3–1 and advanced to the semi-finals.[36] Monaco were eliminated from the Champions League 4–1 on aggregate by Juventus, with Mbappé scoring Monaco's lone goal in the second leg.[37] Mbappé ended the 2016–17 season with 26 goals from 44 matches in all competitions as Monaco won the Ligue 1 title.[38] Mbappé credited fellow striker at Monaco Radamel Falcao as a key influence on him throughout the season, giving him the space to express himself, teaching him to be "calm" and "serene" during the game, traits which Mbappé noted he lacked.[39] CHAPTER 1 Paris Saint-Germain CHAPTER 2 2017–18: World record transfer and treble On 31 August 2017, Paris Saint-Germain announced the signing of Mbappé from Monaco on loan.[40] Part of the tipping point was a convincing speech by then-Paris coach Unai Emery at the Mbappes' home in the summer, when Zidane was not guaranteeing the youngster a starting spot at Real Madrid (fresh from their 12th Champions League triumph) with an attacking trio of Karim Benzema, Gareth Bale, and Cristiano Ronaldo. PSG scout Luis Ferrer told Le Parisien: "I remember how strong Unai was, how good! He gave his word to Kylian that he would play with him. And he kept his promise. Kylian wasn't quite ready for a Champions League game but Unai had committed, so he played him anyway. One night I got back to Paris at 10:30 p.m. When I arrived, I called Antero [Henrique, PSG sporting director] to give him an update and he was surprised that I hadn't stayed in the south. The next day, at six o'clock, I took the first flight. Two hours later I rang the doorbell of the Mbappés with croissants."[41][42] He explained for Argentine media outlet Infobae: "We had to work twice as hard as Real Madrid. We went to his house to talk to his parents and sell them our project. We had to do a lot to show him that we really wanted him, that he would be important to us," Ferrer stressed.[43][44] Mbappé wanted to find a prestigious club where he could be sure of a starting place, with the World Cup just a year away. The fee required for a subsequent full transfer was set at a rumoured €145 million plus €35 million in add-ons, making him the most expensive teenager ever, the most expensive transfer ever within a domestic league, and potentially the second most expensive player ever, behind teammate Neymar.[45][46][47][48] He was handed the number 29 shirt upon arrival in the French capital.[49] Mbappé scored on his debut on 8 September in a 5–1 Ligue 1 win at Metz, in which Benoît AssouEkotto was sent off for fouling him.[50] Four days later, Mbappé recorded his first European goal for Les Parisiens in a 5–0 UEFA Champions League group stage away defeat of Celtic.[51] He starred in PSG's 3–0 victory over Bayern Munich in the second group game of the Champions League, setting up goals for Edinson Cavani and Neymar, the latter seeing him taking out a defender with a feint by rolling the ball under his foot.[52] On 6 December, Mbappé scored his 10th Champions League goal in a 3–1 defeat to Bayern Munich and became the youngest player to reach that mark at the age of 18 years and 11 months.[53] Having won his first league title with the club, on 8 May 2018, Mbappé played as PSG won 2–0 against Les Herbiers VF to clinch the 2017–18 Coupe de France.[54] CHAPTER 3 2018–19: Ligue 1 Player of the Year Mbappé with Paris Saint-Germain in 2019 In July 2018, Mbappé was given the number 7 jersey for the upcoming season with PSG, taking up the squad number vacated by Lucas Moura.[55] Sporting the hashtag #K7LIAN, Mbappé stated, "I keep trying to progress on the pitch and I think that, for me, it was the right time to change number. It is something of an affirmation. The No. 7 shirt is a legendary one and many greats have worn it. I hope that I will be able to do this number justice on the pitch."[55] In his first appearance of the season, Mbappé scored twice in the last 10 minutes as PSG won 3–1 against Guingamp in Ligue 1.[56] In the following league game, the front three of Mbappé, Cavani and Neymar all scored in a 3–1 win over Angers at home, with Mbappé – starting his first game of the season – scoring from a volley and setting up Neymar to score the third.[57] On 1 September, he scored and assisted in a 4–2 away win over Nîmes, but was sent off for the first time in his career with a straight red card in injury time, after shoving Téji Savanier in retaliation for a late challenge from behind, for which Savanier was also sent off.[58] Regarding his sending-off, Mbappé told reporters after the match, "If I had the chance to do it over again, I would do the same thing. I will apologise to the supporters and everybody, but I cannot tolerate this sort of thing."[59] On 8 October, Mbappé scored four goals in just 13 minutes in a 5–0 home victory over Lyon and became the youngest player (19 years and 9 months) to score four goals in one game in Ligue 1 over the last 45 seasons.[60] On 3 December, Mbappé was the inaugural winner of the Kopa Trophy, which is awarded by France Football to the best player in the world under the age of 21.[61] On 19 January 2019, Mbappé was one of two players (the other being Cavani) to score a hat-trick in a 9–0 win over Guingamp, breaking a record PSG set the previous season.[62] On 12 February, he scored a goal in a 2–0 win over Manchester United at Old Trafford in the Champions League round of 16.[63] On 2 March, he scored twice in a 2–1 away win over Caen to reach his 50th goal with the club.[64] On 6 March, PSG lost 3–1 at home against Manchester United, to be knocked out from the Champions League on the away goals rule.[65] On 21 April, he scored a hat-trick in a 3–1 win against Monaco, to be his first goals against his former club.[66] PSG finished the season as Ligue 1 champions,[67] with Mbappé winning the Player of the Year award,[68] while also finishing the season as the top goalscorer with 33 goals.[67] CHAPTER 4 2019–20: Back-to-back league top goalscorer Mbappé playing against Dynamo Dresden in July 2019 On 3 August, Mbappé scored in a 2–1 win over Rennes to capture his first title of the 2019–20 season, the 2019 Trophée des Champions.[69] He then scored again in PSG's opening Ligue 1 match of the season, a 3–0 home win over Nîmes on 11 August.[70] On 22 October, he came off the bench and scored a perfect hat-trick,[71] in a 5–0 away win over Belgian side Club Brugge in the Champions League; at the age of 20 years and 306 days, he became the youngest player ever to score at least 15 goals in the competition.[72] On 1 May 2020, PSG were crowned Ligue 1 champions after the season had been called off amid the COVID-19 pandemic; at the time of the League's premature suspension, PSG were in first place, with a twelve–point lead over second–placed Marseille.[73][74] Mbappé finished the 2019–20 season as joint-top scorer in Ligue 1 with 18 goals, along with Monaco's Wissam Ben Yedder. However, Mbappé was assigned the title of top scorer due to his superior goals per game ratio.[75] On 24 July, in the 2020 Coupe de France Final against Saint-Étienne, Mbappé was forced off after sustaining an injury following a challenge from Loïc Perrin, who was sent off; PSG won the match 1–0,[76] although Mbappé was ruled out of the 2020 Coupe de la Ligue Final,[77] which PSG went on to win, completing a domestic treble.[78] He returned to action in the Champions League quarter-final against Atalanta on 12 August, coming on a substitute, and assisting Choupo-Moting's match–winning goal in injury time.[79] PSG eventually lost out in the Champions League final 1–0 to Bayern Munich on 23 August.[80]