Popov , who won gold in the 50 and 100 metres freestyle at the recent Atlanta Olympics , was stabbed in the abdomen late on Saturday after an argument with a group of roadside watermelon sellers in south-west Moscow .
<response> <person>Popov</person> , who won gold in the 50 and 100 metres freestyle at the recent <misc>Atlanta Olympics</misc> , was stabbed in the abdomen late on Saturday after an argument with a group of roadside watermelon sellers in south-west <location>Moscow</location> . </response>