British number one Johanna Konta's will to win is "very close" to matching Maria Sharapova's, says her new coach.
Michael Joyce, who was a major part of Sharapova's team for six years, started working with Konta in November.
The American, who reached the top 100 as a player before going into coaching, told BBC Sport there are many similarities between the two women.
"The biggest thing with Maria for me was her will to win - Johanna's very close to that", the 44-year-old said.
Ninth seed Konta begins her Australian Open campaign against American Madison Brengle in the first round in Melbourne.