Who stole Schumacher medical files?

Seven-time Formula 1 champion Michael Schumacher was hospitalized December 29 after suffering "severe head trauma" from a ski accident in the French Alps. He is no longer in a coma and has since been transferred to a hospital in Lausanne, Switzerland for rehabilitation. Here's a look back at his personal and career highlights:

Schumacher is hoisted by his pit crew at the Australian Grand Prix track in Adelaide, Australia, after winning the Formula 1 World Drivers Championship in 1994.

Schumacher holds up the victory trophy, left, and the French Republic President's trophy after winning the French Formula 1 Grand Prix in Magny Cours, France, in 1995.

Schumacher meets Pope John Paul II in 1999.

King Juan Carlos of Spain congratulates Schumacher after he won the Spanish Formula 1 Grand Prix in 2001.

Schumacher checks out an Enzo Ferrari at Frankfurt's International Motor Show in 2003.

Schumacher steers his Ferrari in front of a Eurofighter on the track of a military airport in Grosseto, Italy, in 2003.

Schumacher sits in his car before the start at the inaugural Chinese Grand Prix in 2004 in Shanghai.

A man rides past a poster with Schumacher's likeness in Bahreman, Iran, in 2005.

Felipe Massa hugs Schumacher after Massa won first place in the Formula 1 Grand Prix of Turkey in Istanbul in 2006.

Schumacher drives during a practice session at the Australian Formula 1 Grand Prix in Melbourne in 2006.

Schumacher celebrates his win at the Formula 1 Grand Prix of Germany in 2006 in Hockenheim, Germany.

Schumacher's pit team works on his car during the Formula 1 Grand Prix of China in Shanghai in 2006.

Schumacher arrives for an awards ceremony in Oviedo, Spain, in 2007.

Schumacher autographs the T-shirt of an earthquake victim in Costa Rica in 2009.

Shumacher presents the new Mercedes SLS AMG, also the 2010 Formula 1 safety car, in Geneva in 2010.

Schumacher visits the European Parliament in Strasbourg, France, to test eSafety technologies in 2011.

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• NEW: German tabloid Bild says it was offered the medical records but rejected them


• French hospital decided to sue for "theft and breach of medical confidentiality"


• Michael Schumacher's manager says stolen files are being offered for sale as those of the driver's


• Injured ex-F1 racing driver was transferred to a Swiss hospital to undergo rehabilitation

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(CNN) -- Stolen medical files that may be those of Michael Schumacher are being offered for sale, the injured former F1 racing driver's manager said.

Schumacher has been undergoing hospital treatment since a skiing accident last year but is now out of a coma.

Manager Sabine Kehm said the documents had been offered for sale for several days.

She added, "We cannot judge if these documents are authentic. However, the documents are clearly stolen. The theft has been reported. The authorities are involved."

Medical files are confidential, and it is forbidden to buy or publish such data, Kehm said.

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"We will therefore, in every single case, press for criminal charges and damages against any publication of the content or reference to the medical file," she said.

Schumacher, 45, suffered severe head trauma in a December 29 skiing accident at the French Alps resort of Meribel.

The champion driver, from Germany, was transferred last week to Switzerland for rehabilitation from a hospital in Grenoble, France, where he was kept in a medically induced coma for more than three months.

The Grenoble hospital's media office said in a statement that Kehm "told us that a person intended to sell to the press a document allegedly issued from the medical records of Michael Schumacher."

"Without knowing the precise nature of the document, the Grenoble Hospital decided to sue for 'theft and breach of medical confidentiality' so that an investigation can be initiated."

A spokesman for the German newspaper Bild, Tobias Frolich, told CNN that the tabloid was among a number of media outlets to be offered Schumacher's alleged medical records, but that "the editorial office decided to reject the offer."

A French prosecutor investigating the accident concluded that speed was not behind the fall suffered by the seven-time world champion, whose F1 career ended in 2012.

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CNN's Stephanie Halasz, Diana Magnay and Lindsay Isaac contributed to this report.