He was expected to be the most happening player of last season but Boon, who fetched a whopping USD 103,000 for the 2015 season, turned out to be a big disappointment having scored just one goal.
Dabang Mumbai, who made its debut last year, had the option of retaining a maximum of six players -- three Indians and as many foreigners, but they chose to retain only three players.
Apart from Boon, other notable names who have been released by Dabang Mumbai are Dutchman Floris Evers, Australian trio of Matthew Swann, Glen Turner and Timothy Deavin, England's Nick Catalin and Indians Arjun Halappa, Chinglessana Singh, Bharat Chikkara among others.
Speaking on the decision, Dabang Mumbai's strategic advisor and mentor Viren Rasquinha siad: "It was a well deliberated decision keeping in mind the contributions of all the three retained players from last season. Each player adds a unique element to the team composition.