LITTLE ROCK, Ark. — Arkansas-Little Rock athletic director Chris Peterson has resigned after making inappropriate comments about a player's mother during a live webcast of a women's soccer game.Chancellor Joel Anderson said in a statement Wednesday night that he accepted Peterson's resignation Tuesday."What one hears from the director of athletics on the live video transmission of the women's soccer game on Aug. 22 is unacceptable for a person in a university leadership position," Anderson said in the statement.Peterson was in his 15th season as athletic director."I made insensitive remarks while visiting with some athletic department employees at a soccer game," Peterson said in a statement. "My comments were picked up by an open microphone, unknowingly, making a private conversation public. I have apologized to the parties that may have been offended by my remarks and fully acknowledge my words were insensitive and out of line. I've learned a hard lesson."