Though Brad Guzan's move to Aston Villa was thwarted due to his inability to secure a work permit, the English club has revealed that they will continue pursuing the Chivas USA goalkeeper, with an eye on landing the 23-year-old during the summer transfer window. Head coach Martin O'Neill has also expressed frustration over the process that denied the young American a move to his club."We wanted to try and get Brad Guzan in because I believe he has got really good ability," said O'Neill. "He wanted to come to Aston Villa, which was really encouraging, but his appeal for a work permit was turned down. They do not tell you why, six people sit in on it and take a vote. I am certainly going to have a look at it again in the future. If you are talking about the keepers that America has produced, then he is in line with those."