It's been a while at U.S. Open for Serena Williams

Serena Williams is seeking her 24th Grand Slam title and seventh U.S. Open crown. It has been five years since her most recent Flushing Meadows title; what has happened to her since then?

2015: lost to Roberta Vinci 6-2, 4-6, 4-6 in semifinals

• The loss ended Williams' 33-match winning streak in majors.

2016: lost to Karolina Pliskova 6-2, 7-6 (5) in semifinals

• Williams fell out of the No. 1 ranking after a 3½-year reign.

2017: did not play

• Daughter Alexis was born Sept. 1, eight days before the final.

2018: lost to Naomi Osaka 6-2, 6-4 in final

• Forever remembered for Williams' feud with the chair umpire.