(AP Photo) Wisconsin's Graham Mertz throws during the second half of a game against Central Michigan in Madison, Wis. on Sept. 7, 2019. Central Michigan defensive back and St. Ignace native Gage Kreski (20) attempts to shed a Wisconsin blocker. Mertz is about to get his chance to show he’s worthy of all the acclaim that accompanied his arrival on campus last year. Foot surgery has sidelined returning starter Jack Coan indefinitely.

By STEVE MEGARGEE

AP Sports Writer

Wisconsin will open the season without quite as much experience as it expected to have.

Senior quarterback Jack Coan underwent surgery on his right foot last week and is out indefinitely. That means the 16th-ranked Badgers likely will start out their pandemic-delayed, eight-game schedule with redshirt freshman Graham Mertz running the offense.

“I’ve just been prepping every day, attacking every day like I have for the past year,” said Mertz, the top non-offensive line recruit that Wisconsin has signed in over a decade. “I haven’t changed anything in my mindset. I think that’s how it has to be.”

Coan’s injury represented the latest hurdle for an offense that must replace two-time Doak Walker Award winner Jonathan Taylor, All-America center Tyler Biadasz and leading receiver Quintez Cephus from last season’s team.

Even so, the Badgers believe they should contend for a Big Ten title again after going 10-4 and losing in the conference championship game and Rose Bowl last season.

Taylor’s successors should run effectively behind a veteran line featuring tackle Cole Van Lanen, an Associated Press preseason All-America second-team selection.

A defense that ranked fourth nationally in yards allowed per game (287.1) and 13th in yards allowed per play (4.79) last year should be dangerous again. The list of returning players on defense incudes linebacker Jack Sanborn, who had a team-high 80 tackles last season.

“I’ve been on some great defenses, and I can see in this one everyone’s close and has a great relationship,” defensive end Garrett Rand said. “We all know what we’re going to do, how we’re going to do it.”

REPLACING TAYLOR

Wisconsin’s biggest task is replacing Taylor, the first Football Bowl Subdivision player ever to rush for over 6,000 yards in just three seasons. The top three candidates are Garrett Groshek, Nakia Watson and Isaac Guerendo.

Groshek ran for 194 yards on 42 carries and caught 29 passes for 289 yards last season. Watson ran for 331 yards on 74 carries.

“We know we have big shoes to fill, and we know that we can’t be someone we’re not,” Watson said. “We have to be Nakia. We have to be Gross. We have to be Isaac. We have to play our football, the football that got us here.”

NEW PASS-RUSHING THREATS

Wisconsin must find new guys to harass opposing quarterbacks as they replace Chris Orr and Zack Baun, who combined for 24 sacks and 33 tackles for loss last season. Of all the returning players, Sanborn had the most sacks last year with 5 .

COMINGS AND GOINGS

Wisconsin’s offensive line got a preseason boost when Jon Dietzen returned to the team. Dietzen, the Badgers’ starting left guard in 2017 and left tackle in 2018, had announced in February 2019 he was stepping away from football due to injuries.

But the Badgers also had an unexpected preseason loss on defense. Safety Reggie Pearson, whose 60 tackles last season ranked fourth on the team, wasn’t medically cleared to play this season.

VIRUS UPDATE

Wisconsin took a two-week break from team activities in September after a high number of positive COVID-19 tests. When the Big Ten announced it would play a fall football schedule, Public Health Madison & Dane County issued a statement noting that 42 Wisconsin football players and staffers had tested positive for COVID-19 at some point since athletes and staff returned to campus in June.

SCHEDULE SCRAMBLE

The pandemic forced the cancellation of a matchup with Notre Dame at Lambeau Field. The pandemic also means the annual Wisconsin-Northwestern matchup will take place at Northwestern’s campus instead of Wrigley Field.

Wisconsin opens its Big Ten-only schedule \by hosting Illinois Friday night. Illinois stunned Wisconsin 24-23 as a 30-point underdog last season.

“Illinois definitely deserves a butt-whooping from last year,” Watson said. “And I feel like jumping right into conference games keeps us on our toes.”