She said she had been taking meldonium for a decade to treat diabetes and low magnesium
"We are saddened and surprised by the news about Maria Sharapova," Nike said.
She said that after the first announcement, other notices were "buried in newsletters, websites, or handouts."
Top sports photos of the year.
All in all, not a bad day's work.
The 28-year-old tennis player will be provisionally suspended starting March 12, the International Tennis Federation said
Top photos from the last 24 hours.
Highs and lows of the Australian Open.
Highlights from the Wimbledon Championships in London
Following are photographs featuring events during the last 24 hours selected by Reuters' editors.
Serena Williams and Maria Sharapova criticized Russian International Olympic Committee member Shamil Tarpischev for comments about the Williams sisters.
Maria Sharapova overcame Simona Halep in three sets in sweltering temperatures to clinch her second French Open championship at Roland Garros...