Maria Sharapova leghthy ban, with the International Tennis Federation [ITF] confirming she has been provisionally banned with effect from the 12 March.
A Nike statement read: "We are saddened and surprised by the news about Maria Sharapova.
"We have decided to suspend our relationship with Maria while the investigation continues.
"We will continue to monitor the situation."
Meldonium is used to treat diabetes and low magnesium, and the five-time Grand Slam champion said she had been taking it for health issues.
Meldonium with the wonderful side effect of increasing her endurance and performance, enhancing drug.
