MADISON, Wis. (AP) -- Just like last year, Ron Dayne's Heisman Trophy hopes are buried somewhere under a big pile of maize and blue.

	Ron Dayne was held to zero yards in the second half by Michigan.

Tom Brady threw two touchdown passes and the No. 4 Wolverines' hard-nosed defense held Dayne to zero rushing yards in the second half as Michigan beat Wisconsin 21-16 Saturday.

Michigan (4-0) won its 18th consecutive Big Ten Conference opener with another tenacious performance against a running team. A week after the Wolverines held Syracuse to 59 rushing yards, Dayne gained nothing on eight carries in the second half and twice failed to get critical first downs for the Badgers (No. 17 ESPN/USA Today, No. 20 AP).

"When (Michigan's defenders) get an opportunity to play against one of the most highly-touted running backs that ever played in the Big Ten, it brought out the best in them," Michigan coach Lloyd Carr said.

Dayne had just 53 yards on 16 carries in Michigan's 27-10 win over Wisconsin last season, the Badgers' only loss of 1998 and the game that killed any Heisman hopes for his junior season. Wisconsin's star tailback did nothing Saturday to quiet doubters who say he disappears in big games.

"The coaches told me not to get frustrated, that we were going to get one- or two-yard runs, so I just tried to keep going," Dayne said.

He finished with 88 rushing yards on 22 attempts, and he didn't carry the ball in the last 10 minutes of the game as the Badgers tried to catch up.

Dayne needs 1,105 yards in Wisconsin's seven remaining games to beat Ricky Williams' Division I-A rushing record.

"Our goal was to hold him to less than 80, but 88's not bad," Michigan linebacker Ian Gold said.

The loss snapped an eight-game winning streak for the Badgers at Camp Randall Stadium. Wisconsin's last home loss also came to the Wolverines, who have beaten the Badgers three straight times.

The Wolverines weren't much more impressive than the Badgers on offense, but Brady directed two scoring drives and Michigan scored on a double-reverse while leaning on its imposing defense.

An exuberant crowd at Camp Randall Stadium became increasingly quiet as the Badgers' offensive struggles continued in the second half. Wisconsin coach Barry Alvarez, his right knee awaiting replacement surgery, coached the game from the press box.

"Right now I just have so many emotions pent up that you can't release in the press box like you can on the field," Alvarez said. "Normally, you walk off and you're spent. Right now, I haven't spent my emotions."

Michigan made a 10-play, 91-yard drive late in the third quarter that ended when DiAllo Johnson beat double coverage to snare Brady's 23-yard touchdown pass with 1:02 left, giving Michigan a 21-9 lead.

David Terrell had seven catches for 88 yards, and he also scored on the 45-yard double-reverse in the first quarter. Marquise Walker had five catches for 49 yards, while Brady was 17-of-27 for 217 yards and Drew Henson was 5-of-8.

Backup quarterback Brooks Bollinger led Wisconsin on a 10-play, 80-yard drive in the closing minutes of the game and scored on a 13-yard bootleg with 1:29 left, but Michigan tailback Anthony Thomas recovered the onside kick, and the Wolverines ran out the clock.

Wisconsin (2-2) lost its second straight game and wasted a strong defensive performance with inept offensive play. Dayne's linemen weren't much better than their star back, and quarterbacks Scott Kavanagh and Bollinger couldn't get the Badgers moving.

On fourth-and-1 from the Wolverines' 25 with 11:32 to play, Bollinger pitched to Dayne on the option, but he was swarmed by three Wolverines for a 2-yard loss.

"We had a guy get up the field and force the pitch before they wanted it," Carr said. "I'm not sure if somebody missed a block or if one of our guys just made a great play. That was ... maybe the biggest play of the game."

Dayne looked much better when he scored on a 34-yard run with 3:27 left in the second quarter. In typical Dayne fashion, he took two hits at the line of scrimmage before righting himself and running the rest of the way untouched.

Wisconsin mistakes aided the Wolverines throughout the game. A personal foul on Badgers defensive lineman John Favret kept Michigan's opening drive alive, and the Wolverines went in for a score.

Brady, who was 7-of-7 on the drive, hit fullback Aaron Shea with an 8-yard touchdown pass less than eight minutes into the game.

After Dayne fumbled, the Wolverines went up 14-0 on a graceful double-reverse shortly before the end of the first quarter. Terrell ran 45 yards for the TD with great blocks from Shea and Anthony Thomas.

"The defense was sold on the first reverse," Terrell said. "Coach Carr could have walked into the end zone on that one."

Wisconsin got its first points on a 32-yard field goal by Vitaly Pisetsky early in the second quarter, but the kick came one play after Chris Chambers, blinded by the afternoon sun, dropped a potential touchdown pass in the end zone with no defenders within 20 yards.

Chambers, who missed Wisconsin's last two games with a broken hand, had nine catches for 93 yards.