The field of women's-tennis players has been famously deep in recent years, and one of the effects of that is that no seed is safe in the early rounds.
Even Top 10 stars have to worry about the drawing unseeded names with enough firepower to put the rest of their tournament in jeopardy. Here are three first-round ladies' matches to watch out for at Wimbledon:
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It feels strange to think of Stephens as an established top player, but she's earned her spot at No. 4 in the world in the past year by winning the US Open and Miami Open, and by making the final at Roland Garros.
As strong of a player as she's been, Stephens can't be happy having to open her campaign against Vekic. While Vekic is currently outside the Top 50, she's proven very dangerous on grass. The Croat won the title in Nottingham in 2017, beating Johanna Konta in the final, and this year she made the semis there.
At 22 years old, Vekic hasn't had a deep run at Wimbledon yet, but, this early in her career, it's still very much in the cards.