Boston Herald reporter Lisa Olson continues to have problems, two months after she was allegedly sexually harassed by several New England Patriots players.

Only these problems have taken a different form: At a recent Boston Celtics exhibition game, Olson -- who now covers the Celtics and Boston Bruins -- had beer thrown on her by a fan, who then proceeded to yell obscenities at her. At another Celtics game, Patriots player Bruce Armstrong made rude gestures to her as he sat in the stands.

Then there were the "rumors" checked out by Boston's WHDH-TV-7. According to Olson, Channel 7 sports producer Frank Shorr told another Herald reporter that the station was prepared to air a story alleging Olson was sexually involved with five Patriots. John Dennis, WHDH sports director, said the station never was prepared to go with such a story, but said they were checking "rumors going around."

There never has been any evidence of unprofessional conduct by Olson and several Patriots said the rumors were untrue and based on stereotypes.

The investigation of the incident in the Patriots' locker room by Philip B. Heymann, professor of law at Harvard and former Watergate prosecutor, has just about concluded, according to a source close to the investigation. Heymann's report should be in Commissioner Paul Tagliabue's hands by the end of the week.

One of the things investigators did, according to the source, was ask each New England player if he had ever been involved with Olson or heard about any other player being involved with her.

Each player said no.

Meanwhile, the Patriots (1-7) continue to unravel at the seams, and at the midway point of the season are a good bet to finish with the league's worst record. Hey, Herschel

Move over Herschel Walker, the Vikings have another running back.

D.J. Dozier, who had demanded a trade, signed. Minnesota's leading rusher last year, Dozier was a conditional free agent and played in the New York Mets' instructional league this summer. . . .

The Rams waived running back Curt Warner, 29, and his $700,000 contract. Warner, who started the first three games and totaled 139 yards, signed as a free agent after seven seasons with the Seahawks.

Los Angeles is expected to activate Marcus Dupree from its practice squad. After a standout college career at Oklahoma, the running back suffered a knee injury while in the USFL in 1985 and hasn't played since.

The Rams also placed cornerback Mickey Sutton (knee) on injured reserve and activated cornerback Clifford Hicks. . . .

As expected, the Bengals put Pro Bowl safety David Fulcher on injured reserve after he separated a shoulder against the Rams Sunday. They activated cornerback Eric Thomas. . . .

The Steelers activated rookies defensive end Karl Dunbar of LSU from the physically unable to perform list. Pittsburgh starting guard Terry Long, who suffered a mild concussion in a car accident Monday night, was released from the hospital and is not expected to miss any games. . . . The Patriots waived Robert Perryman, saying the fullback had put in a mediocre performance in the seven games he played this season. Title Run?

That the 49ers have achieved an 8-0 record without a substantial rushing game makes them even more impressive. The last time a San Francisco runner gained more than 100 yards in a regular season game was December, when Roger Craig rushed for 105 against Buffalo.

When Joe Montana said that much of their running game consisted of quick five-yard dump passes -- "long handoffs," he called them -- he spoke the truth. But the absent running game takes the effectiveness from San Francisco's play-action fakes.

Opponents know what the 49ers are going to do, they know about their weak running game, yet nothing changes: The 49ers keep winning.

Green Bay defensive end Matt Brock has his own explanation as to why San Francisco keeps winning: He says they cheat.

"Their offensive line is real good at holding," Brock said after Sunday's 24-20 loss. "I couldn't even jump up in the air to block a pass, because I was held down on the ground."

After he fell. The Waffle Update

Even though the World League of American Football is no longer taking player applications, the phones in the Dallas office still ring off the hook. The WLAF is getting 150 calls a day from prospective players who want to, and still think they can, play football.

Tryout camps started last weekend in Montreal and New York and will continue in various WLAF cities for five weeks. When invitations went out, the league got more than 4,000 letters from players and more than 10,000 from players and agents combined. . . .

What a difference a year makes. The Dolphins (7-1) once had the Killer B's and now they have the Killer D.

Last year Miami gave up an average of 23 points a game. That number has dropped to 11 this season and the Dolphins, losers only to the Giants, have given up one touchdown in their last 14 quarters.

"They're for real," Coach Joe Bugel said after his Cardinals lost, 23-3, on Sunday. "People say they've played a weak schedule; I don't believe it. They're legitimate contenders." . . .

The AFC will continue to have problems in Super Bowls. All of its best quarterbacks are getting older and there are no young replacements on the horizon. The NFC has drafted seven quarterbacks in the first round since 1987: Jim Harbaugh, Vinny Testaverde, Chris Miller, Troy Aikman, Steve Walsh, Timm Rosenbach and Andre Ware. During the same period the AFC has drafted only Jeff George.

Also, NFC quarterbacks average 26 years of age and only two -- Montana and New York's Phil Simms -- are older than 27. AFC starters average 30 years, and 10 are at least 29. The Upset Pick

The Cowboys over the 49ers. Troy Aikman will show why he's the next Montana. Either that or Montana will show why he's the current Montana. Record to date: 0-2.