With the Olympic trials underway, some runners and jumpers have no time to worry about Zika, dirty water or any of the other problems making news in Rio de Janeiro right now. 

Says sprinter English Gardner: ``The burden of being great is too heavy. There's no time to worry about mosquitos. Just don't get hit.''

And this from high jumper Vashti Cunningham: ``My focus shouldn't be on the virus or anything else down there. It should be on getting there first.''

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