Sloane Stephens enters this first round with a wildcard and a ranking of 286th, while Sinja Kraus, 81st, comes through qualifying after two wins in Cincinnati. Stephens has won 6 of her last 10 matches, but has a 4-10 record this season; Kraus is on a two-match winning streak.
The head-to-head is blank. On hard courts, Stephens has significantly more experience with 184 wins and 161 losses on the main tour, while Kraus is only 1-8 there. Freshness could still matter: the Austrian played yesterday, while Stephens has had nine days of rest.
The serve and returns will be key, especially Kraus's ability to extend rallies against a more experienced opponent in this tournament, where Stephens has already reached the semifinals.
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