Lucas Domingues Piazon (born on 20 January 1994) is a Brazilian professional footballer who plays for Primeira Liga club AVS.

[4] Piazon spent a decade at Chelsea, though he only played three games for them (one in the Premier League), and was loaned to seven clubs in six countries.

He grew up with his sister Juliana, who is three years younger than him[6] and was a Chelsea supporter from an early age, aspiring to play for them some day.

In early 2011, Chelsea secured the services of Piazon by means of a pre-contract, having to fight off the interest from a number of the world's leading clubs, including Italian team Juventus.

[9] On 15 March 2011, São Paulo announced that Piazon could only play for the Chelsea senior team after 20 January 2012 when he became eligible to obtain a work visa, but he would join in the 2011 summer transfer window.

"[14] Piazon scored his first reserve goal in an away victory against Arsenal, just before full-time with a solo effort, inside the box before firing it into the net.

On 20 January 2012, his 18th birthday, Piazon obtained a work visa and became eligible to play for the Chelsea senior team.

[19] Chelsea manager André Villas-Boas said, after the Manchester United game, "He [Piazon] has trained more with the first team, which is very good for him.

[22] He stated that he was looking forward to continuing his development and would like to make the breakthrough into the senior side, saying "I hope to be in the main group, train with them every day and if I have a chance to play some games."

"[23] The pre-season prior to the start of the 2012–13 season, Piazon was given a chance to prove himself by Chelsea manager Roberto Di Matteo after being taken on tour in the United States, came on as a substitute in three of the four matches, making his senior debut in the 4–2 win over Seattle Sounders FC.

[28] Piazon was named in Chelsea's 22-man Champions League squad, along with fellow Brazilians Oscar, David Luiz and Ramires[29][30] and was chosen ahead of Florent Malouda.

[citation needed] Piazon made his competitive debut for Chelsea, starting in their League Cup fixture against Wolverhampton Wanderers, which ended a 6–0 win for the Blues, also assisting the goal for Ryan Bertrand.

[35] During the 2013 January transfer window, Piazon was loaned to Spanish La Liga side Málaga until the end of the season.

[36] He made his debut for Málaga on 24 January 2013, coming on as a substitute in the 4–2 home defeat in the Copa del Rey quarter-final against Barcelona.

[37] On 9 March 2013, Piazon made his second assist for Málaga with a ball from a free-kick that found Martín Demichelis, who headed to score in a 1–1 draw against Real Valladolid.

[42] In the following Eredivisie fixture, against NEC, Piazon scored the winner for Vitesse in the 92nd minute, from outside the box, which ended 3–2 on 29 September.

[43] On 19 October 2013, he scored a brace and assisted Patrick van Aanholt's winner, as Vitesse came from 2–0 down to win 3–2 at Heerenveen.

[50] On 11 September, he made his debut and provided an assist to Oliver Norwood in a 5–1 triumph against Ipswich Town coming on as a 77th-minute substitute for Matěj Vydra.

[54] He made his Fulham debut and scored his first goal for the club in a 2–1 EFL Cup defeat against Bristol City on 21 September.

[57] On 15 August 2017, Piazon suffered a fracture-dislocation of his right ankle after a tackle from Leeds player Conor Shaughnessy in their 0–0 draw at Elland Road.

At under-15 level, he helped his team to second place in the South American Under-15 Football Championship of 2009 in Bolivia, being the top goalscorer with ten goals.

A tactical player, Piazon is known for his flair, passing, powerful shooting, free-kicks, penalty kicks, reading of the game and clinical finishing.

"[67] The media have often drawn comparisons between Piazon and Brazilian playmaker Kaká, as the pair possess similar attributes and natural technical finesse.