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Ryan Pierse/Getty Images for British Olympic Association
Sport: Great Britain selected Marcus and Ellen to represent the country in the mixed doubles badminton event.
What to Know: Just three years after playing together for the first time, the pair has shown they're stronger together. When they lost in the quarter-finals in Tokyo, Marcus shared on Instagram, "I want to say a massive thank you to Lauren who brought the absolute best out in me at these games given the horrendous preparation leading up to it. You know when to kick me in the ass but also know when to let me do my own thing and without that, I wouldn't have been anywhere near ready for some of the most important matches we will play in our career."