The Ghana captain’s mother passed away at the Ridge Hospital in Accra after crashing her car.
Nyantakyi who visited the Al Ain striker’s family on Wednesday says it is imperative Gyan is rather encouraged during this period other than talking about his past flaws.
“We are all part of the family and we share in the grief the family is going through and we shall all be around console each other.
“The best tribute we can pay to Gyan’s mother is to encourage the player to lead Ghana to win the 2013 Africa cup of nations,” Nyantakyi told reporters.
“Don’t talk about his penalty misses, let us rather talk about his potential of scoring more goals,” he added.
Gyan will arrive in Accra on Friday from his base in the UAE to join his family in mourning Cecilia Mensah Gyan.
He has been excused from Ghana’s friendly match against Cape Verde in Lisbon on November 13.