Sharapova hires Groeneveld
Maria Sharapova has hired Dutchman Sven Groeneveld as her new coach.
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Sharapova has been without a formal coach since her ill-fated summer link-up with Jimmy Connors, which lasted only one match.
The Russian had previously split from long-term coach Thomas Hogstedt after Wimbledon.
Writing on her Facebook page, Sharapova said: "I'm happy to announce my official partnership with Sven Groeneveld.
"We've been working together since I got back on the court and after seeing him on the opposing side for so many years, I'm excited to have him become a part of my team.
"It has been a very seamless transition and I have had a lot of fun with the hard work we have put in so far. Looking forward to the year ahead."
Sharapova has not played since August having pulled out of the US Open with a shoulder injury that then ruled her out for the rest of the season.
Groeneveld is hugely experienced, especially on the women's tour having coached Monica Seles, Mary Pierce, Ana Ivanovic and Caroline Wozniacki among others.
Most recently Groeneveld had worked with a range of players through a coaching role with adidas but that deal expired during the summer.
Groeneveld had been one of the names linked with Laura Robson, who this week confirmed she will work with Americans Nick Saviano and Jesse Witten.
World number four Sharapova is scheduled to make her competitive comeback at the Brisbane International, which starts on December 30.