Three cheers for Frances Tiafoe: Eubanks, Gauff, Fritz, Pegula lead kudos for the American's Top 10 debut

WATCH: Frances Tiafoe saved a match point to beat Jan-Lennard Struff in a dramatic final at the Boss Open.

The newest member of the ATP's Top 10 is Monday's top trending topic on social media. American Frances Tiafoe officially ascended into the world's elite Monday as a result of winning a dramatic final 24 hours earlier in Stuttgart, Germany—in which he saved a match point to beat Jan-Lennard Struff in a third-set tiebreak and claim his first grass-court title.

Tiafoe is one of the most popular players with his peers, and the American's historic achievement was appropriately lauded by his friends on both tours.

Christopher Eubanks and Jessica Pegula sounded off on Twitter, while players including Coco Gauff, Robin Montgomery, Asia Muhammad and Taylor Townsend chimed in on their Instagram stories.

In response, Tiafoe had a bit of fun: Amongst a flood of reposts, he tagged Gauff's story and asked if he had done enough for a pair of CG1s, her signature New Balance shoe.

Tiafoe ascent into the Top 10 assures the U.S. of having two men inside the world's elite for the first time in more than a decade. He joins Taylor Fritz, the current world No. 8—and Fritz welcomed Tiafoe to the club with his own post. It's the first time two American men are ranked in the Top 10 since the week of May 7, 2012, when Mardy Fish was No. 9 and John Isner was No. 10.

With Gauff and Pegula also occupying spots in the WTA's Top 10, it's the first time there are multiple American men and multiple American women in the Top 10 at the same time since the week of Jan. 26, 2009.

Tiafoe is also the third African-American man to rank in the Top 10 since the inception of the ATP rankings in 1973, joining Arthur Ashe (debuted on August 23, 1973) and James Blake (debuted on March 20, 2006).

When learning of that distinction, Tiafoe reacted on Twitter.

Finally, Ayan Broomfield, Tiafoe's longtime girlfriend, authored her own emotional post. Broomfield, a decorated tennis player herself who won an NCAA doubles title at UCLA, posted a slideshow of milestones from from Tiafoe's career to date.

"I started taking screenshots of different moments and accomplishments a few years ago in anticipation of this day," she wrote. "I can’t post them all but I think this tells the story pretty well. I am so proud of you.

"Huge milestone and I think that we can finally say that #bigfoecameup," she added, referencing Tiafoe's longtime personal mantra.

"Man to think how far we’ve come," Tiafoe wrote in the comments. "2015 meeting you for the first and also just starting my career. You've rocked with me thru [sic] it all. The good, the bad and the standstills. It’s been a ride no one can put into words. I’m so damn lucky to have you in my life. Not only as my girl but my best friend and my go to. You mean more to me than you can ever imagine. I love you with all I got."