#4 Bruno Fernandes (Manchester United): +€30M
Bruno Fernandes joined Manchester United in January 2020 for a fee believed to be worth €80M, including add-ons. At the time, his market value was estimated to be €60M.
Since his arrival, the Portugal international has taken the Premier League by storm and has made Manchester United a force to be reckoned with once again. While his stats at the club have been extraordinary, the sheer impact of his presence has been unparalleled.
The 26-year-old has played 47 matches for the Red Devils across all competitions and has been involved in 44 goals (27 goals and 17 assists).
Fernandes has already won six Player-of-the-Month awards at Manchester United despite being a player for the club for less than 12 months in a year when the regular season experienced a 3-month halt.
Unsurprisingly, his market value has also witnessed a sharp rise. At the end of 2020, his market value was estimated to be €90M, an increase of €30M since the start of the year.
#3 Ansu Fati (Barcelona): +€40M
A product of Barcelona's famed La Masia academy, Ansu Fati has quickly become a beacon of hope at a club that seems to be struggling on multiple levels. After signing his first professional contract in July 2019, Fati made his senior team (and La Liga) debut even before playing for Barcelona's reserve team.
The 18-year-old Spanish star already holds several age-related records and is widely hailed as one of the best young players across the world.
By the start of 2020, Fati had played a few matches for Barcelona, largely as a substitute, but had begun to make the most of his opportunities. At that time, his market value was estimated to be €40M.
However, since then, Fati has started to become a key player in the team, especially considering the uncertainty surrounding Lionel Messi's future.
So far, Fati has made 43 appearances for Barcelona in all competitions and has scored 13 goals and assisted five. Notably, Fati finished in second place in the 2020 Golden Boy award.
He also received his first call-up to Spain's senior team and went on to make four appearances on the international stage.
At the end of 2020, his market value had increased significantly, and the player was estimated to be worth €80M, an increase of €40M over the course of the calendar year.
#2 Alphonso Davies (Bayern Munich): +€55M
Alphonso Davies only became a regular feature at Bayern Munich towards the end of 2019, ending the year with an estimated market value of €25M.
He built on the momentum subsequently and went on to make a splash the next year. The left-back's speed proved to be too much for most teams to handle, as he tormented sides all year long. Davies is already being hailed as one of the best left-backs in the world.
An absolute livewire, the 20-year-old was a key part of a Bayern Munich team that was quite simply unstoppable. He helped the Bavarian club win their second continental treble en route to five trophies during the year - Bundesliga, DFB-Pokal, DFL-Supercup, the UEFA Champions League and the UEFA Super Cup - with Davies being a fundamental cog in the rampaging Bayern juggernaut.
The Canada international finished in third place in the 2020 Golden Boy award. By the end of 2020, Alphonso Davies became one of the most well-known young players in the game, and his market value soared to an estimated €80M - an increase of €55M.
#1 Erling Haaland (Borussia Dortmund): +€55M
Erling Haaland kicked up quite a storm in the first half of the 2019-20 season while playing for FC Salzburg in the Austrian top flight. In the first half of the season, he made 22 appearances and scored a staggering 28 goals for the Austrian club in all competitions.
Subsequently, on 1st January 2020, the Norwegian striker completed a move to Borussia Dortmund for a reported fee of €20M. His market value at the time was estimated to be €45M.
Haaland is yet another player who took 2020 by storm, as he settled in almost immediately at Dortmund.
Since his arrival at the beginning of last year, the 20-year-old has made 33 appearances across all competitions for Borussia Dortmund, scoring 33 goals and assisting six. Despite his young years, Haaland is already making a name for himself for his astonishingly prolific shooting ability.
The winner of the 2020 Golden Boy award, Haaland had a truly meteoric year, which is reflected in his market value as well, which increased by €55M; the Dortmund player ended the year with an estimated market value of €100M.