Artois Championships: Monday 9 June to Sunday 15 June Coverage: BBC TV, BBCi, Radio 5 Live and the BBC Sport website.
Murray first match at Queen's in two years was over in 14 minutes
Andy Murray needed just two games to reach the third round of the Artois Championships when opponent Sebastien Grosjean retired with a groin injury.
The Frenchman, a two-time finalist at Queen's saved two break points in the opening game before double-faulting on the third to give Murray the lead.
But play was then halted as Grosjean received lengthy treatment on court.
He carried on with his thigh heavily strapped, but quit the match after Murray served two aces to go 2-0 up.
It was Murray's first competitive ATP tour match on grass since the summer of 2006 after an injury-hit 2007.
He is also playing in the doubles with Venezuelan Daniel Vallverdu. The pair beat Richard Gasquet and Nicolas Mahut on Monday.
Murray said: "I would rather have won the match normally just because you get more confidence from that, but I got a good hour, 75 minutes on court with the doubles yesterday."
He added: "(Grosjean) had a problem with his shoulder before the French Open and hurt his hamstring in Monte Carlo so he hasn't played for six or seven weeks, but I didn't expect him to have to quit the match.
"It was at least nice to finish with two aces with a serve as poor as mine!"
Grosjean said: "There is a tear in the left adductor muscle. They tell me it will take seven to 10 days to heal."
Belgium's Xavier Malisse made short work of beating Daniel Evans in the first round, handing the British wildcard a 6-1 6-1 defeat.
The 2002 Wimbledon semi-finalist is only ranked 239 in the world after a long battle with a wrist injury, but that still leaves him 749 places above Evans.
He broke the Birmingham teenager - making his ATP Tour debut - on his first service game and needed just 42 minutes to wrap up victory.
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