Sports Opinion: Time is running out for Serena Williams to win Grand Slam No. 24 — and she knows it February 18, 2021Dan Wolken, USA TODAYComments Off on Opinion: Time is running out for Serena Williams to win Grand Slam No. 24 — and she knows it The emotion shown by Serena Williams after her Australian Open loss to Naomi Osaka is a sign she knows time is running out to win Grand Slam No. 24