Welcome to SI Tennis’ Power Rankings – a new recurring feature on SI.com that goes beyond the regular ATP and WTA rankings to grade and rank the top 20 men's and women's players by more than just points earned on tour. While tournament results and quality of play are considered, SI Tennis’ Power Rankings also take into account those unquantifiable metrics that make the sport so compelling—everything from injuries and meltdowns to big upsets and recent title wins, as well as other subjective assessments. Each edition of SI Tennis Power Rankings is intended to capture a more seasonal and timely portrait of the current tennis rankings.
Fabio Fognini: He hasn't won back-to-back matches in his last eight events and went 0-3 at Hopman Cup, losing to John Isner, Vasek Pospisil, and Adam Pavlasek. That's terrible.
Jo-Wifried Tsonga: He hasn’t beaten a Top 20 player since winning the Rogers Cup last summer and withdrew from the Australian Open with an arm injury.
Gilles Simon: Currently on a four match losing streak. Started his 2015 season with a straight set loss to No. 119 James Duckworth in Brisbane.
Dominika Cibulkova: Last year’s Australian Open finalist has been a non-factor for the last nine months.
Jelena Jankovic: She hasn’t strung together a pair of wins since the U.S. Open and began her 2015 by getting bageled by Ajla Tomljanovic.
Sara Errani: She has won just one match since the U.S. Open. Well, at least there’s doubles!
Sam Stosur: For some, home court advantage can be a massive boost. And then there’s Stosur.