1.   A. Either cold or heat can be a useful addition to aspirin in the treatment of muscle sprain or strain.

2.   It turned out to be nothing more than an aggravation of a muscle sprain and Carter returned to start the final period.

3.   Last May the president had a muscle sprain in her left foot that pressed on the sciatic nerve, impeding her ability to walk.

4.   Sports and medecine section director Kathleen Stroia said the Spaniard had suffered a stress fracture and a bad muscle sprain in her right ankle.