— By David Walsh HUNTNGTON, W.Va. — Marshall softball got some good news Sunday. The Thundering Herd is going to the NCAA Tournament for the third time and is the beneficiary of a short trip to the tournament site. Marshall, an at-large entry from the Sun Belt Conference, is matched up against Arizona of the Big 12. The Wildcats (35-16) also received an at-large entry. Duke, from the Atlantic Coast Conference, is regional host, meaning the locat…