![Serena Williams lost in the Qatar Open final last week. EPA](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/GQQKHUXHZFWQ4PSEV5PLVQOSIM.jpg?smart=true&auth=709554aa97a7d91ffcc1c37c17c484ff0b03922863b09ab1026eeb0f3476a652&width=400&height=225)
Serena Williams lost in the Qatar Open final last week. EPA
Serena Williams lost in the Qatar Open final last week. EPA
Dubai Tennis Championships: Serena Williams withdraws citing lower back injury
Both top-ranked players, and finalists at last week's Qatar Open, have now opted out of the event on fitness grounds.