This is the 18069th most frequent Russian word.
футболисту
"Футболисту" means "to a football player" in English.
The word 'футболисту' is used in the dative case here, indicating that the action of giving advice is directed toward the football player.
Я дал совет футболисту.
I gave advice to the football player.
In this sentence, 'футболисту' operates as the recipient of the action, shown by its dative case usage.
Книга была подарена футболисту.
The book was given to the football player as a gift.
Again 'футболисту' is in the dative case, used to denote the beneficiary of the assistance provided in the context.