Evans, who is ranked 57th in the world, is currently serving a provisional suspension and faces a lengthy spell away from tennis after cocaine was found in his system at April’s Barcelona Open.
The British No3 could be handed a ban of up to four years if the drug use is deemed to be performance-enhancing, and Murray had little sympathy for Evans after cruising through round one at Wimbledon.
Evans’ absence was notable on a day when fellow Brits Aljaz Bedene, Heather Watson and Johanna Konta also progressed to round two.
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Murray said: «It will be a difficult time for him. But he put himself in that position. The rules are very clear. He broke those rules, and deserves his suspension.
«However long that’s going to be, I don’t know. But it’s going to be a pretty long period, I’d imagine.»
Evans rose to a career high world No41 in March after an impressive 24 months on the circuit. He had fought back from 772 in the ATP rankings during 2015, and joined Murray as part of the team which celebrated Davis Cup success later that year.
Murray added: «In what was looking like it was going to be the best few years of his career, he got himself into a position to play in all the big events.
«He’s going to have a few years away from the game now. You make your decisions. He’s obviously made a really, really bad one there.»