<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.kipindi ambacho messi na cristiano ronaldo watastaafu, mjadala wa mchezaji gani bora duniani utakuwa kati ya neymar na mbappe.  <response>: when messi and cristiano ronaldo retire, the debate about the best in the world will be between neymar and mbappe. 