British number one Katie Bolter was knocked out of the US Open second round in a horrendous straight set defeat by Spain's Jessica buas Monero Bolter the 31st seed started strongly in the opening set breaking first before bu's Monero found her footing the world number 74 stormed into the lead in the second set and held off a late search to close out a 7 to 57 to5 Victory Bolter Was Heard saying everything was horrendous to her team at the side of the Court the 28-year-old has leapt up the rankings after a strong 18 months but she has yet to reach the second week of a grand slam