Tunisian upsets

Tunisian teenager Ahmed Hafnaoui was a stunning winner from lane eight in the men’s 400m freestyle. “I was surprised with myself,” said Hafnaoui, 18, who joined Ous Mellouli as a gold medallist from the north African country. “I couldn’t believe it until I touched the wall and saw the 1 [on the scoreboard].” Hafnaoui finished in 3m 43.26s, followed by Australia’s Jack McLoughlin and Kieran Smith.