If the dating apps aren't working, you may have better luck becoming a professional athlete. Over the years, professional athletes have made great couples. WNBA player Sue Bird and soccer star Megan Rapinoe; football player Zach Ertz and soccer player Julie Ertz; retired boxer Laila Ali and former football player Curtis Conway; tennis players Roger and Mirka Federer; retired soccer player Mia Hamm and former baseball player Normar Garciaparra; soccer players Alex Morgan and Servando Carrasco; and the list goes on. Athlete couples give "power couple" a whole new meaning.

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Friendships between athletes have also provided us some tender moments on and off the field. Soccer players Alex Morgan and Sydney Leroux; tennis players Rafael Nadal and Roger Federer; soccer player Lionel Messi and the late basketball player Kobe Bryant; basketball teammates Steph Curry and Draymond Green; and the list also goes on. Seeing friendships and relationships blossom among athletes adds even more entertainment for sports fans. Sometimes, though, the line between friendship and romance gets blurry. The relationship between soccer players Christen Press and Tobin Heath has certainly blurred these lines. Fans seem to think they're dating, but the players themselves have not confirmed or denied that they are more than friends.

8 Who Is Christen Press?

Christen Press is a professional soccer player from Palos Verdes, California. Over the course of her career, the 33-year-old has won two World Cups and played for several teams in Sweden, England and the United States. The two-time Olympian is now signed with Angel City FC in Los Angeles, the first majority woman-owned National Women's Soccer League team. Angel City has a lot of high-profile owners, including actress Natalie Portman, tennis player Serena Williams, retired tennis player Billie Jean King, and retired soccer players Mia Hamm and Abby Wambach.

7 Who Is Tobin Heath?

Tobin Heath is also an American soccer player. She recently left Arsenal WFC, a Women's Super League soccer club located in Islington, London, after a hamstring injury. The 34-year-old New Jersey native is a four-time Olympian and has also previously played for teams in France and the United States.

Related: 20 Facts The US Women's Soccer Team Doesn't Want Us To Know

6 When Did Christen Press And Tobin Heath Start Dating?

Christen Press and Tobin Heath are both veteran players for the United States Women's National Team. There are rumors that Heath and Press have been dating since 2015, but neither player has officially confirmed their relationship (or their sexuality). Regardless of the true nature of their relationship, they have been close friends for years, and they even played for Manchester United together.

5 Christen Press' Instagram Posts Have Fans Convinced That They Are Together

Christen Press has shared quite a few cute Instagram posts of the two together. They have celebrated birthdays and holidays together, and though Press has many other soccer player friends, she rarely dedicates a birthday post to them (wink wink). Heath doesn't post on Instagram as often as Press, so her page does not lend much evidence one way or the other.

4 There Are Rumors That Christen Press And Tobin Heath Are Engaged

Given the pair's secrecy over whether they are actually together, it is difficult to tell if Press and Heath are engaged. Press continues to post with Heath on her Instagram, but beyond that, fans do not know much about their relationship. Only time will tell if the two have been together, just friends, engaged, or married this whole time.

Related: Everything We Know About Megan Rapinoe's Love Life Before Sue Bird

3 Heath And Press Have Their Own Brand Called Re-Inc

Heath and Press are not only rumored romantic partners, but they are also business partners. They have their own brand with fellow USWNT veterans Megan Rapinoe and Meghan Klingenberg called re-inc. The brand's tagline is "a lifestyle brand built to challenge the status quo." Their brand sells environmentally sustainable, gender-neutral products, including clothing and an assortment of lifestyle items.

2 Heath And Press Are Not The Only Soccer Star Couple

Heath and Press are not the only players who have found love on the field. Fellow NWST players Ali Krieger and Ashlynn Harris married in December 2019 after hiding their relationship from the public for nearly ten years. Press recently posted a picture from a dinner she and Heath had with the married couple. There is also a video from Krieger and Harris's wedding where Heath and Press appeared to kiss, but the quality of the video makes it difficult to confirm.

1 Fans Like The Possibility Of A Press-Heath (AKA Preath) Relationship

There are many Instagram fan accounts dedicated to the talented pair. There are also many fan compilations of cute moments between Christen Press and Tobin Heath on YouTube, hoping for the day one of them actually confirms their relationship. Though we may never know the truth about their relationship (or friendship), these compilations are pretty convincing!

Next: What's Next For Carli Lloyd? Everything The USWNT Star Is Excited For In Her Retirement