by Alastair Himmer Rio de Janeiro, Brazil (AFP) — Michael Phelps emphatically ruled out a U-turn on his decision to quit swimming after the Rio Olympics following a shock defeat Friday in his final individual race. After being denied a fifth gold of the Games by Singapore’s Joseph Schooling in the 100m butterfly, and dead-heating with Chad le Clos and Laszlo Cseh Phelps for silver, Phelps was inevitably asked the six million dollar question. […]