According to Freddie Roach in a recent conversation with Boxingtalk, Manny Pacquiao will arrive in Los Angeles on Sunday night, and will begin training on Monday morning.  Pacquiao will face Mexican legend Marco Antonio Barrera in September for a much anticipated rematch of a bout that was won by Pacquiao. Roach told Boxingtalk, "Manny will land in Los Angeles on Sunday, and he will start training on Monday."  Roach went on to say, "We know Barrera will come out all guns blazing in this fight, so we will be ready for that.  This might be Barrera's last coming out, so we will not be taking him lightly."