Couples.com presents: The best power couples in tennis

Love means zero when you're keeping score in tennis, but that doesn't mean it's not a major, and valuable, part of life on tour. Is there anything more romantic than traveling the world together while chasing your dreams?

Tennis couples have been forming for as long as the game has been around—it truly seems that those who play together, stay together. Here's a look at some of the sport's strongest love matches:

After Pennetta won the US Open in 2015 and retired, she got married to the world No. 13-ranked Fognini. The Italians had their first child last year.

Thiem and Mladenovic are the highest-ranked active tennis couple on tour. They kept their relationship under wraps at the start, but once they launched into "Instagram official" mode, they haven't stopped spamming their fans with cute photos, including from their recent vacation to the Maldives.

The 33-year-old Swiss and his 22-year-old beau have made love last while enduring very different phases of their careers. They've been dating for over three years, and you can often spot one half of this happy couple supporting the other from the player boxes all around the globe.

The dream Grand Slam-winning couple married in 2001 and have two children together—who are now teenagers. They won a combined 30 Grand Slam singles titles during their illustrious careers, and started dating in the late 1990s.

The Americans are one of the newer and youngest pairings on tour, only recently announcing their relationship (on social media, of course). Keys reached two Grand Slam semifinals in 2018, while her 25-year-old boyfriend is closing in on the Top 100.

Baghdatis and his wife, former world No. 17 Sprem, got married in 2012. They have two young girls together. Baghdatis is still on tour, though he's down to No. 125.

This married couple has one of the most public and tennis-centric proposal stories to tell their future children. Emmrich popped the question to his Dutch then-girlfriend at the WTA event in 's-Hertogenbosch in 2014.

The Australian and the Croatian have been traveling the world alongside each other for years. Though there's been some ups and downs, they always seem to find a way to make it work.

This Aussie pair has been together since their junior-playing years, making them "high-school sweethearts" in tennis terms. Gavrilova switched her nationality from Russian to Australian in 2016.

They were married for three years, tying the knot when Vaidisova was just 20, before divorcing in 2013. Both have since retired from pro tennis, and rekindled their relationship. They got married again in 2018 before welcoming their first child together.

Everyone tends to forget that Mirka Vavrinec had a tennis career of her own, reaching as high as No. 76 in 2001. She met Federer at the 2000 Olympics in Sydney, and the rest is history. She's been his greatest support system for his career, and the two have four children together—two sets of twins.

Want to be like the pros and travel the world with your significant other? Go to Couples.com for some luxurious tropical vacation ideas.