Fernandinho was part of the Brazil team that lost 7-1 to Germany in the semi-finals of the 2014 World Cup, a match described as a "national tragedy" by the country's press.
Hailing Smith for accepting his team's mistake, Nehra said no team can afford to miss such valuable assets like Smith and Warner, adding that the issue should now be left behind.
It was a match full of shifts in momentum, with seven service breaks in the first four games, although none of them ultimately worked to Sakkari's advantage.