The Italian city, taking over this year from London as the venue, will also see the best female player, mens and womens coaches chosen.
Van Dijk is the favourite after he won the Champions League with Liverpool last season.
Messi could also win given his 51 goals in 50 games and La Liga title with Barcelona.
Cristiano, meanwhile, won Serie A and the italian Supr Cup, scoring 28 goals.
Source: https://www.sport-english.com/en/news/barca/lionel-messi-hoping-to-win-the-best-in-milan-7646002