RIO DE JANEIRO—Usain Bolt seeks to say his goodbye with another gold medal on Thursday night at the Rio de Janeiro Games, where another Olympic juggernaut — the US men's basketball team defeated Spain 82-76 in the semifinals to book their palce in the gold medal match.

A day after winning another gold in the 200 metres, Bolt will appear in what he has insisted will be his final Olympic race. He'll look to add to his medal stash as part of the Jamaican team in the 4x100 relay finals. Bolt led the Jamaicans to the top of the podium in the event in Beijing and again in London, where the team set the world and Olympic records.

While Bolt is saying goodbye, Ryan Lochte is saying he's sorry.

Breaking his silence, Lochte apologized yesterday for his behavior surrounding an early-morning incident at a Rio de Janeiro gas station, saying he should have been more candid about how he described what happened after a night of partying with his teammates following the final swimming races.

Day 14 of the Rio Games features medal action in track and field, soccer, wrestling, boxing, platform diving and more.

Lochte said in a lengthy post on Instagram that he was apologising for his role in taking the focus away from other Olympic athletes.

"This was a situation that could and should have been avoided," Lochte said. "I accept responsibility for my role in this happening and have learned some valuable lessons."

The 12-time Olympic medalist reiterated his view that a stranger pointed a gun at him and demanded money to let him leave a gas station. Lochte had called it a gunpoint robbery; Brazilian police said he and three other swimmers vandalized a bathroom while intoxicated and were confronted by armed security guards.

Lochte returned to the United States early in the week before a Brazilian judge had ordered his passport taken away while police investigated his claims of getting robbed at gunpoint by thieves posing as police.

Bolt completes double in Rio

Usain Bolt raced to 200 metres gold at the Rio Olympics but reacted with frustration at failing to challenge his world record in tough conditions.

The Jamaican flew round the bend but appeared to tie up down the home straight as he crossed the line in 19.78 seconds.

Canada's Andre de Grasse took silver in 20.02secs, while France's Christophe Lemaitre edged out Great Britain's Adam Gemili for bronze in agonising fashion, with both men given the same time of 20.12s.

Bolt was never in danger of being caught, but his anger at not going quicker was clear for all to see as he crossed the line and looked at the clock.

He recovered to lap up the acclaim as he celebrated his eighth Olympic title, draped in a Jamaican flag.

Bolt bent down to kiss the finish lane in lane six, his lane, as he completed his lap of honour before performing his signature 'Lightning Bolt' pose, to huge cheers.

Ahead of the race he got the customary rapturous reception from the not quite capacity crowd inside the Olympic Stadium and looked relaxed as always. He even managed a samba on the start line.

But the rain which began to fall around 20 minutes before the start of the race had put paid to any realistic chance of him breaking his own world record of 19.19secs.

And in the end he could not get near it, with his time his slowest of any of his global 200m winning marks.

There remain, however, fewer better sights in sport than the world's fastest man in full flight. (AP)