HUNTINGTON, W.Va. (AP) _ The Marshall University band played when the university broke ground for its new stadium, but hammers in the background struck a note of discord for about 150 union laborers on hand.

Members of the Tri-State Building and Construction Trades staged a protest Wednesday amid the carnival-like atmosphere at a groundbreaking ceremony that officially kicked off construction on the replacement to dilapidated Fairfield Stadium.

The ceremony also drew protesters from the school's staff who feel the $30 million being spent on the 30,000-seat stadium could be better spent on academics.

Unofficially, work was under way even as Marshall President Dale Nitzschke stepped to the microphone of a makeshift stage at the construction site and was drowned out by jeers from the union members.

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PENSACOLA, Fla. (AP) - Roy Jones Jr. says nothing in boxing, including his fight last Saturday against an imposter, can faze him after what happened in the 1988 Olympics.

Jones pummelled South Korean boxer Park Si Hun two years ago in Seoul and many ringside observers thought the American was the clear-cut winner of the 156-pound gold medal bout. But judges awarded the victory to the local favorite.

''I was strong enough to get through that,'' Jones said Wednesday. ''I've got the confidence to get through anything. When bad things happen to me, it just makes me stronger.''

The latest bad thing to happen occurred when he got his ninth knockout in as many professional fights against a boxer he and promoters thought was Derwin Richards of Houston, the junior middleweight champion of Texas.

Richards said Monday he wasn't the one in the ring in Pensacola. Jones' manager backed him up.

The State Attorney's Office and the Florida State Athletic Commission are trying to find out who Jones decked at 2:02 of the first round. Whoever it was left with a $2,000 purse and has not been seen or heard from since.

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KANSAS CITY, Mo. (AP) - Bo Jackson may be put on the disabled list after medical tests Thursday indicated some minor tissue damage in his left shoulder, the team announced.

Jackson injured himself Tuesday night while diving for a ball in center field in a game with the New York Yankees.

It has not yet been decided whether Jackson would be put on the disabled list, said Royals' spokesman Steve Fink.

A medical exam Thursday on pitcher Bret Saberhagen showed he has a small bony fragment in his right elbow that will need to be surgically removed.

No date has been set for surgery.

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TEMPE, Ariz. (AP) - Offensive lineman Eric Ipock, one of the state's top high school football players in 1988, has withdrawn from Arizona State for academic reasons, Sun Devil coach Larry Marmie says.

The 6-foot-2, 300-pound Ipock sat out his freshman season last year after being ruled academically ineligible under the NCAA's Proposition 48 rule.

Marmie said Ipock struggled academically last year and withdrew near the end of the first session this summer.

''Basically, he told us he's tired and he doesn't want to go to school here anymore,'' Marmie said Wednesday. ''He had a chance (to remain eligible) if he completed summer school. I guess he just felt he couldn't do it.''

Ipock, who starred at Peoria High near Phoenix, was being counted on as a backup guard this season at Arizona State.

Marmie said Ipock is hoping to enroll at a local junior college but may not be eligible to play football again until next year.