The United States denied a star-studded Jamaican team the gold in the women’s 4x100m at the world athletic championships in Eugene, Oregon on Saturday, while Canada upset the US in the men’s sprint relay. Twanisha “TeeTee” Terry held off 200m champion Shericka Jackson in the home stretch of the women’s 4×100 relay to finish in 41.14 seconds, in front of a delighted home crowd. The Jamaican quartet, also featuring 100m champion and 200m silver medallist Shelly-Ann Fraser-Pryce, had trouble in the first changeover between Kemba Nelson and five-time Olympic champion Thompson-Herah and finished .0…