NEW YORK -- Serena Williams' expected retirement will have to wait. The 23-time major champion won her first-round match 6-3, 6-3

over Danka Kovinic at the US Open on Monday night.

"You know, I in every case just got to do all that can be expected," Williams shared with the group after the match

"At the point when I step out on the court, I simply believe should do my best that I can on that specific day. That is actually all I can truly do."