Michael Phelps captured his 20th Olympic gold medal in devastating fashion Tuesday, sealing victory with a kiss, before adding a staggering 21st before the night was over.
The American crushed rival Chad le Clos to regain his 200 metres butterfly title, celebrating victory in a race bristling with tension by pointing to the sky and gesturing to the Rio crowd to "bring the noise" — an order they duly obeyed.
Phelps beat Japan's Masato Sakai by just four hundredths of a second to take the 200 metres butterfly and just over an hour later anchored the US 4x200m freestyle relay team to victory.
At 31 — the oldest individual Olympic swimming gold medalist ever — Phelps is still the master of the pool.
World record holder Phelps, the most decorated athlete in Olympic history, clocked 1min 53.36sec to add to his staggering title tally as Japan's Masato Sakai came through for a surprise silver in 1:53.40. Hungary's Tamas Kenderesi took bronze in 1:53.62.
Competing in his fifth and final Olympics, victory was twice as sweet for Phelps after clashing with le Clos in the media since losing to the South African in their epic tussle in London.
Phelps has four other medals — two silver and two bronze.