Maria Sharapova's two-year drugs ban has sent a "powerful message" to drug cheats, according to former Great Britain Fed Cup captain Judy Murray.
The five-time Grand Slam winner has been banned by the International Tennis Federation for using a prohibited drug.
Murray told BBC Radio 5 live that Sharapova's punishment made it clear "that there's not going to be any hiding place for drug cheats".
Sharapova has said she would appeal against the "unfairly harsh" ban.
The 29-year-old was provisionally banned in March after testing positive for the heart disease drug meldonium - which became a banned substance on 1 January 2016 - at this year's Australian Open.