Genie Bouchard in Bathing Suit is "Celebrating" With Twin

Genie Bouchard is twinning with her sister in their swimsuits! The tennis star and her twin, Beatrice, show off their equally fit figures in bathing suits, reuniting after a long feud for their birthdays in Tulum. "Celebrating our bday together for the first time in 8 years," Genie captioned the Instagram post. How does she stay so fit? Read on to see 6 of Genie Bouchard's top diet and fitness tips for staying in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

"I'm very disciplined and focused; I need to be," Genie divulged to  Elle Canada. "If I do something then I'll commit. I don't think I'm naturally an emotional person. When I make a mistake, I'm obviously disappointed in myself, but I can't dwell on it. I've learned not to dwell on the mistake while I'm playing because that will just lead to more mistakes. It's a vicious cycle. I can't afford to be an emotional rollercoaster."

Unsurprisingly, Genie stays in great shape by playing tennis. "I spend most of my time on the tennis court. I wake up at 8," Genie told Elle Canada. "Then I hit the tennis court for two hours working mainly on my technique. After lunch, I spend about another two hours on the tennis court."

Genie also relies on weight training and cardio. "As a tennis player, I have to work on my strength and cardio. I find the game of tennis has become more physical, and players are spending more time at the gym," she told Elle. "I love doing weights because I know I'm getting stronger and I really enjoy that part of the gym. I also spend extra time on my lower body because I have to have strong legs on the court," she added to The New Potato about her gym workouts. "I don't really find any workouts overrated because fads don't get incorporated into my routine. I always stay focused and do my training and stick to what is good for me."

Genie fuels her body with healthy foods, making sure to balance carbs, good fats, and protein. "My favorite meal of the day is breakfast. I could literally eat breakfast food three times a day. I love eggs benedict because it's the perfect way to get that protein in the morning before I start my day," she told The New Potato. "Before a big match I always have a big bowl of pasta to refuel. It's a typical tennis player meal. I have to fill up on carbs because I burn so much energy during a match, so I need to make sure I get those carbs in and fuel up beforehand." She also refuels her body post-match with a protein shake. "Right when I come off the court it's hard for me to eat an entire meal right away, so it's an easy way to get calories in during that crucial 30-45 minute window. In the hours afterwards, I try to stock up on protein and carbs."

Genie prioritizes hydration. "It's really important to stay hydrated. I notice a big difference in my performance and with my skin. I feel better and I look better, and I find that to be important," she said. According to the U.S. National Academies of Sciences, Engineering, and Medicine men should drink about 15.5 cups (3.7 liters) of fluids a day and women about 11.5 cups (2.7 liters) of fluids. 

Genie also gets her Z's. "I also think that sleep is a necessity and should be a priority. A big part of my job is to get enough hours every night to recover and do it all again the next day. Nobody wants bags under their eyes!" she told The New Potato.