The Bobby Knight Affair, which began last month when the Indiana University basketball coach allegedly assaulted a Puerto Rican policeman at the Pan American Games, apparently will fizzle out.

Knight's offer to resign from his post at the university, after he was sentenced to six months in jail and fined $500 in a Puerto Rican court Wednesday, was rejected yesterday by John Ryan, Indiana University president.

The fiery Knight, who is vacationing somewhere in Montana and did not appear at the trial, said there is "no way, under any circumstances, I would ever go to Puerto Rico," Although some officials there are said to be seeking his extradition, a spokesman for the office of Indiana Gov. Otis R. Bowen has said the governor "indicated he would not be willing to allow Bobby Knight to be extradited."

A spokesman for the Puerto Rican Justice Department declined comment on whether the government would try to extradite Knight. One department source said his return would not be asked for because he is not wanted there.

Lloyd Burruss, the University of Maryland's All-Atlantic Coast Conference defensive back, will undergo surgery today to have ligament damage mended in his right leg.

If the operation is successful, Burruss could be back in action in seven weeks -- just in time for the Terps' clash Oct. 13 with conference favorite North Carolina State.

Maryland Gov. Harry Hughes said yesterday he will meet with Robert Irsay, owner of the Baltimore Colts, on Wednesday to discuss Irsay's recent loud talk about moving the football team.

Lee Mazzilli yesterday signed the largest contract ever offered a New York Met -- a six-year pact estimated at more than $1 million.

The center fielder was the Mets' No. 1 selection in the 1973 free-agent draft and led the club in batting last season. Mazzilli is currently in a 0-for-22 slump that has lowered his average to .300.

Washington State University football players have decided to resume practice out of respect for defensive tackle Hayward (Spud) Harris, who died shortly after workouts Wednesday night.

Harris, 21, collapsed after completing blocking-sled drills. The 6-foot-4, 235-pound senior had been a starter most of his college career.

Bob Pincus will serve as interim wrestling coach at American University this year while Dr. Robert Karch, who has been wrestling coach there for the past 10 years, develops the university's new master of science program in health fitness management.

A team of federal investigators that "reflew" New York Yankee catcher Thurman Munson's fatal flight path failed Wednesday to produce more information on the Aug. 3 crash.

The National Transportation Safety Board investigators flew a Cessna Citation One, the type of plane Munson was piloting, but were unable to duplicate the conditions.

Baseball Commissioner Bowie Kuhn has handed a substantial fine to San Diego Padre owner Ray Kroe for saying last week that he would try to sign Graig Nettles and Joe Morgan as free agents.

Officials refused to say how much Kroc was fined.

After the Yankees and the Reds accused Korc of tampering because of his statement, he apologized, calling it a "slip of the tongue."

One of World Championship Tennis' "Big Three" events will be held in Salisbury, Md., next year. The WCT Invitational will include the six top players competing in singles for six days, Feb. 19-24. The tourney will be held in the city's new Civic Center.

A total of 134 boys' and girls' teams are scheduled to compete this weekend in the fourth annual Journal National Capital Invitational Soccer Tournament. Competition in eight age groups will begin at 8 a.m. today on fields at Brookhaven Elementary School, E. Brooke Lee, Parkland, Argyle and Wood junior highs and at Layhill, Bonifant and Veirs Mill recreation areas.

The three-day round-robin tourney will conclude with championships at Wheaton High School Sunday. Teams from England, Canada, Florida, Georgia, New Jersey, New York, North Carolina, Ohio and Nevada will join area squads in the competition.