Despite picking up six more medals the US track meet had another rough night Thursday Both the mens and womens 4x100-meter relay teams bumbled their final exchanges and failed to finish the heats Somebody somewhere has a voodoo doll on the United States womens anchor Lauryn Williams told NBCs Bob Neumeier Back in the studio Bob Costas summed it up perfectly when he said So the US relay teams laying a giant egg in the Birds NestEarlier world champion Allyson Felix was beaten convincingly by Jamaicas Veronica Campbell-Brown in the womens 200 Campbell-Brown the defending champion looked magnificent in running 2174 seconds putting her into a tie for eighth on the all-time list She jumped on Allyson Felix something awful and it was all downhill from there NBCs Ato Boldon said Felix ran a seasons best 2193 but never had the spark she showed in winning the last two world titlesread more