The Parisians are on 69 points with four games left with Monaco trailing by 11 points
Up until this year’s opening Grand Slam, the French 10th seed had never been put through the physical demands of a five-setter, yet the 2008 Open finalist has polished off two in succession against Nicolas Almagro and Novak Djokovic.
Now Tsonga, who bears a striking physical resemblance to former champion boxed Muhammad Ali, is one match away from playing in his second Australian final, but to do that he faces the greatest Grand Slam warrior of them all.
Tsonga, who lost to Djokovic in the 2008 final, came from 1-5 down in the third set to upset Federer in the quarter-finals of the ATP World Tour Masters in Montreal last August.
That has given him some heart for the big challenge confronting here against the Swiss star, who is playing in an unprecedented 23rd consecutive Grand Slam semi-final.
“Of course. I know I can do that, but it (Montreal win) was completely different,” Tsonga said. “Now I have to win three sets, and it’s going to be difficult for sure.”
The athletic Frenchman plays a high-risk attacking game and will be looking to impose himself on the world number one.
“I feel good. My last two matches were tough, and I did it. Why not against Roger?
“I will be ready. It’s going to be tough, he’s the best player ever. I have to play my best tennis.
Tsonga believes he will be a different player to the one who lost the final two years ago.
“Maybe I’m physically stronger. I think I have more than one way to play, and this is why I’m better.”
But plenty have tried and failed to master Federer in his favoured best-of-five set domain.
The cool Swiss champion is chasing his fourth Australian Open crown and 16th Grand Slam title and has been honed by two strong performances against Lleyton Hewitt and in-form Russian Nikolay Davydenko.
The last time Federer failed to make a Grand Slam final was here in 2008 when he lost in straight sets to eventual champion Djokovic in the semi-final.
What makes him such a special and difficult player to beat is his ability to adapt, his variety of shotmaking, his mental toughness under fire and his physical durability.
He was put under extreme pressure by Davydenko in their quarter-final, falling behind only to hit back spectacularly and take it in four sets.
“I was in a tough situation at 6-2, 3-1 down and 15-40 on my serve, but that’s the beauty of best-of-five sets,” Federer said.
Federer is a tough proposition, particularly if he gets away to a flying start.
“I’m a great frontrunner, so I feel like if he gets the first set, it’s going to be a really close match. Whereas if I win the first set, it’s always going to be hard for him.”
The winner will face either British fifth seed Andy Murray or 14th seeded Croatian Marin Cilic in Sunday’s final.
The Parisians are on 69 points with four games left with Monaco trailing by 11 points
The health ministry has ensured the safety of 'a very limited number' of people who showed some symptoms of being affected by 'the mixed water'
The evening was a resounding success, boasting delectable cuisine, a lively ambiance, and impeccable service
Reds defeat at Everton extinguishes their last hopes of winning the Premier League
The destination was to originally close on April 28
The cashback is valid until May 12
Both BJP and Congress raised allegations of causing hatred and division based on religion, caste, community, or language
The zoo found international notoriety in 2016 when the singer Cher launched a campaign to remove its shackled Asian elephant Kaavan