Former world number one Serena Williams has explained why she retired from her third-round match at Indian Wells in California, USA, this past weekend.
The 23-time Grand Slam champion retired while trailing Spanish player Garbine Muguruza 6-3 1-0 on Sunday.
Williams took to the court for the second set, but the 37-year-old retired after Muguruza held in the opening game.
"Before the match I did not feel great and then it just got worse with every second - extreme dizziness and extreme fatigue," Williams said on BBC.
"By the score it might have looked like I started well, but I was not feeling at all well physically. I will focus on getting better and start preparing for Miami (Open)."
Muguruza is now set to face Dutch player Kiki Bertens, who defeated Britain's Johanna Konta.
Williams was eliminated from the first Grand Slam tournament of the year, the Australian Open, in the quarterfinals two months ago.
She will be hoping to recover before the upcoming French Open, which will start in May 2019.
Liverpool's van Dijk relishes facing world class Lewandowski
Liverpool defender Virgil van Dijk is looking forward to facing Bayern Munich's world class striker Robert Lewandowski.
The English giants will take on German football heavyweights in the second leg of their Champions League last-16 tie, which is delicately poised after a goalless stalemate at Anfield last month.
No player in the competition can match Lewandowski’s eight goals so far this season and van Dijk, who returns from suspension for the game at Allianz Arena, is likely to come head-to-head with the Poland international.
“You need to be aware of the qualities of every striker you face, as I always am, but sometimes you need to be smart and more than 100 per cent ready for anything,” van Dijk told UEFA.com.
“If he’s trying to run at you, trying to get past you, you need to be ready for that as well. You don’t need to give any opportunities to those strikers because they will punish you and they will score.”
Victory or a score draw in Germany would take Liverpool back into the quarterfinals of a tournament they finished runners-up in last term.
“There’s always pressure at a big club. I’d rather play with pressure than without,” the centre-back added.
“I’m very proud to play for all these fans, for the manager, with these fantastic players and to wear the shirt every game. To play with pressure is always a good thing. I like to play with pressure.”