LUBBOCK, Texas -- Texas Tech President David Schmidly said Monday he is giving students who were part of the melee following the school's game with Texas A&M Saturday a chance to report their involvement.

As many as 1,000 students were involved in what began as celebrations of Tech's 12-0 victory over Texas A&M. Goal posts were torn down and carried to the Aggie end of the field where there were physical confrontations between fans. The goal posts were pushed up into the stands.

Mike McKinney, Gov. Rick Perry's chief of staff and the father of Aggie center Seth McKinney, had to have eight stitches to close a gash above his right eye.

Schmidly said a review of footage from two cameras in the stadium showed it was an A&M student, not a Tech student as first reported, who punched McKinney.

Police near the Aggie section of the stadium saw the confrontation between McKinney and the student and talked with him a short time later. He admitted then he had punched McKinney, Schmidly said.

Schmidly has written a letter to students about Saturday's incident that will be published in Tuesday editions of The University Daily. He called the actions of the students involved the "worst form of barbaric behavior."

"We've seen the tapes. They're not pretty," Schmidly said. "Some activity is worse than others."

Schmidly said students who report their participation "could be dealt with differently on the disciplinary side of this."

"If they don't come forward and to the extent we can identify them, we're going to pursue disciplinary action in the most vigorous way we possibly can," he said. Expulsion is a possibility.

One student, whose name Schmidly declined to release, came to his office Monday in tears.

"I admire that student," Schmidly said. "That took a lot of courage and a lot of guts. It doesn't condone what he did, but it does show that he understood that he acted emotionally and he regrets it."

Disciplinary action had not yet been determined for that student.

The police report on the incident was not available Monday.

A new emphasis on sportsmanship at Tech also will begin, Schmidly said. A committee that has worked to boost attendance at Tech games will be renamed the Pride, Pageantry and Sportsmanship Committee. Work to educate students about sportsmanship will be done through numerous campus groups, he said.

Texas Tech officials also are working on new security policies for football games in an effort to prevent a repeat of Saturday's melee.

Schmidly promised to take steps before Tech's next home game Nov. 17 against Oklahoma.

"I pledge to everybody that Texas Tech is not going to be known as a place that a bunch of ruffians can ruin an athletic event because they can't control their emotions or their tempers," he said. "We're just not going to have it. I'm not going to sleep until we get it rooted out and fixed."

Schmidly and athletic director Gerald Myers said it's likely that Tech will purchase collapsible goal posts, a type that can be dismantled quickly at game's end.

"I just don't think some of our students know how to handle winning," Myers said.

Various types of barriers, such as the mesh netting used at baseball fields, are being considered to keep fans from pouring onto the field after games.

Tech officials also plan to look at stadium capacity. The stadium is built to hold 50,500 fans, but Saturday's attendance was 52,649.

Big 12 Conference spokesman Bo Carter said the league would investigate after receiving written reports about the game from both universities, expected this week.