Injury threat worried Murray
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Andy Murray says he feared picking up an injury during the Davis Cup tie with Argentina and admits he needs to take some time off.
The 29-year-old pushed his body to the limit over the weekend, competing in the longest match of his career against Juan Martin del Potro on Friday as he stayed on court for over five hours in a losing effort.
The world number two was back in action on Saturday in the doubles with brother Jamie as they won to keep Great Britain in the semi-final before recording a straight sets victory over Guido Pella on Sunday to send the tie to a final rubber.
Dan Evans could not complete the comeback though as he lost the decider to Leonardo Mayer, ending Britain's reign as Davis Cup champions.
The focus for Murray now is recovery after admitting he was worried he would pick up an injury against Pella and the plan for the three-time Grand Slam is to take an extended break after a hectic summer in which he won Wimbledon and the gold medal in the Olympics.
"I've never really had any muscle injuries before," Murray told BBC Sport. "That was worrying for me and thankfully I managed to get it done in straight sets. I was still moving okay, but when you get pain in your body it distracts you."
"I have a lot of sharp pain in my right quad. I have to go and see what's up and get some treatment. I need a break. I have played so much tennis, my body needs some rest."