The 25-year-old Salah leads the list of players, with his value increasing the most over the past six months.
Mohamed Salah is arguably experiencing the best footballing season since the start of his professional career.
"Transfer value estimates are based on the exclusive algorithm developed by the CIES Football Observatory research team".
The Liverpool forward's meteoric rise to the top of European football has been quite astonishing.
Recently, the Egyptian won the African Footballer of the year award 2017, being a honour for his contribution in Liverpool's campaign as well as lifting Egypt to the World Cup scheduled for Russian Federation in June this year.
However, even with his strong form for Roma, nobody could have predicted his impact in the Premier League this season.
The Germany worldwide has scored 12 goals through 39 matches this season for a Man City side that has a 13-point lead atop the Premier League, as well as a game in hand.
After Mbappe, Salah's Reds teammate Joe Gomez is a surprise inclusion, and is the players with the sixth most increased transfer value according to CIES.