Maria Sharapova showed courage over failed drug test as Nike and Tag cut ties with her as ambassador.

Five-time Grand Slam winner Sharapova, 28, revealed on Monday that she tested positive for meldonium at the Australian Open in January.
Nike and Tag Heuer have also become the first major sponsors to cut ties with Maria Sharapova after the tennis star revealed she had tested positive for the banned substance meldonium, with Porsche also suspending promotions with the player.

"Most people were surprised and shocked but happy that she was upfront and very honest," said Serena Williams, 34.

"It's just taking responsibility, which she admitted she was ready to do."

Sharapova's ex-coach Nick Bollettieri said the Russian's test was a "game-changer for life, not just for tennis".
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The 84-year-old American told BBC Radio 4's Today programme he was shocked former world number one Sharapova tested positive because "she has always been above board in everything".

Meldonium, which Sharapova said she has taken since 2006 for health reasons, became a banned substance on 1 January 2016.

The 2004 Wimbledon champion tested positive after losing to Williams in the Australian Open quarter-finals on 26 January.

The International Tennis Federation (ITF) said Sharapova will be provisionally suspended from 12 March. She faces up to a four-year ban.