Lewis Hamilton has arrived in Monaco just six points behind championship rival Sebastian Vettel following his victory at last Sunday's Spanish Grand Prix.
Here, we look at the key talking points as the southern French port plays host to the most famous race on the Formula One calendar.
BUTTON IS BACK
Jenson Button, the 2009 world champion, will take centre stage in Monte Carlo this weekend as he prepares for his Formula One comeback. The 37-year-old, who called time on his career in Abu Dhabi last November, will make a one-off appearance for McLaren with Fernando Alonso in America competing at the Indianapolis 500. Button, yet to test this year's car, will be given his first taste of action in practice on Thursday. The low-powered nature of the Monte Carlo street circuit means there will not be as much emphasis on McLaren's lacklustre Honda engine and, as such, could play into Button's hands. So, could the veteran Englishman spring a fairytale result on Sunday?
HAMILTON TO MATCH SENNA
Hamilton is just six points adrift of Vettel following his win in Spain to leave the championship rivals on two victories apiece this season. And the Briton is now just one pole position shy of equalling the number achieved by his boyhood hero Ayrton Senna, too. Senna is widely considered as arguably the greatest one-lap specialist of all-time, and where better than Monaco for Hamilton to match his pole tally? Senna won more races in Monte Carlo (six) than any other driver - including five consecutive victories between 1989 and 1993 - while a statue will be unveiled at the Fairmont Hotel on Wednesday to celebrate 30 years since his first win here back in 1987.
MERCEDES READY TO "BRING DOWN THE GARAGE ROOF"
Mercedes boss Toto Wolff revealed that his team's battle with Ferrari has helped him rediscover his love for the sport. Wolff's Mercedes team are this season bidding for a fourth consecutive drivers' and constructors' championship following an unprecedented run of success. But this marks the first campaign in which another team has been on a level playing field. "I love the intense competition," said Wolff. "This competition means that you won't be winning easily, but that you'll have a fierce fight on your hands. The feeling is even greater when you manage to come out on top, as we did in Spain. If we get the job done in Monaco, I'm pretty sure we'll bring down the garage roof."
ALL EYES ON ALONSO
The eyes of the motor racing world will turn to Alonso on Sunday evening as he takes to the famous brickyard for the 101st running of the Indy 500. Around 300,000 spectators are expected to watch the two-time F1 world champion bid to complete the second phase of the so-called 'Triple Crown' - that of winning the Monaco Grand Prix, the Indy 500 and the Le Mans 24 hours race. Unsurprisingly, Alonso has impressed during his time in America and will start from fifth on the grid. The F1 paddock will descend on his McLaren team's motorhome in Monaco for a special screening of the race which gets under way at 5pm BST.
HAMILTON LEADS HAYDEN TRIBUTES
Motorsport bid a tragic farewell to former MotoGP champion Nicky Hayden who died on Monday. The American, nicknamed the Kentucky Kid, collided with a car while cycling in Italy last week and succumbed to his injuries. Hamilton posted a message to his Instagram followers as Britain's triple world champion led the tributes. "Dear Nicky, you will be missed," he wrote. "May God hold you high, you are forever in our hearts. My thoughts and prayers to you and your loved ones."