Illinois at Michigan State. Pick: Illinois -2.5. Pick: Under 48.5.

Spread.Market first: Illinois moved from mostly minus 3.5 to minus 2.5 despite Michigan State's 3 point output at Wisconsin, which most plausibly reflects Illinois' loss to Purdue, its season-ending lead-rusher injury, and uncertainty among several Illini skill players. I still make Illinois the side at the captured DraftKings minus 2.5. Michigan State has scored 13 and 3 in its two Big Ten losses, lost Cam Edwards for the season, and its backup quarterback Cam Fancher left the Wisconsin game with a knee injury. Illinois also has a real personnel hit in Ca'Lil Valentine, so this is a standard bet rather than strong. Our model is wrong to shade MSU by one at home because its margin-only inputs miss the Edwards absence, MSU's broader availability issues, and the quarterback injury. The model's 1.5 point market disagreement is not independently meaningful.

Total.Market first: the total fell from 50 to 51.5 at most openers to the captured 47.5 to 48.5 range, pricing much of the obvious reaction to Michigan State's offensive collapse and personnel losses. Under 48.5 is still a small lean because MSU has totaled 16 points across its two conference games, Edwards is out, and Fancher's knee status is unresolved. Illinois losing Valentine and carrying several unresolved skill-player listings adds to the same direction. Clear, warm conditions limit the weather case, and Illinois has otherwise been involved in high-scoring games, so the lower price prevents a bet. The totals model is effectively at market and supplies no edge.

Where our number looks wrong.Its home-favored number does not reflect Michigan State's season-ending loss of Edwards, Fancher's fresh knee issue, or the team availability strain documented before Wisconsin.

• Illinois reported Valentine's season-ending leg injury against Purdue.
• Michigan State scored three points and gained 235 yards in the October 3 loss at Wisconsin.
• Edwards will miss the remainder of the season.
• Illinois reported Valentine's season-ending injury in its October 5 game preview.

Spread.Market first: Illinois opened 3 to 3.5 at most books and has been bet down to 2.5, which reads as respect for a homecoming spot against an Illinois team that just lost at home to Purdue, fired its defensive coordinator after Ohio State, and lost leading rusher Ka'Lil Valentine for the season. Against that, Michigan State's offense has been the worst unit on the field in Big Ten play: 13 points against Nebraska and 3 at Wisconsin, an 11th straight road loss, and a two quarterback rotation that stalled drives. Cam Fancher, the situational quarterback, left the Wisconsin game with a right knee injury. Illinois still has Katin Houser and a passing game that scored 17 against a Purdue team it should handle. I lean Illinois at 2.5 because the drop from 3.5 removes the key number protection the market previously demanded, but the Illinois injuries and defensive turnover keep this a lean, not a bet.

Total.Over case: Illinois scored 30.6 per game and Michigan State's defense allowed 31 in each of its last two games, while Illinois' defense is changing coordinators. Under case: Michigan State has scored 10, 13 and 3 against power opponents, Illinois lost its leading rusher and punted four times against Purdue, and the captured forecast shows wind near 14 mph. The market has already dropped from 50 to 51.5 down to 47.5 to 48.5, and our totals model sits on the number at 47.9. I lean under at the 48.5 numbers because Michigan State's offense carries most of the scoring burden it cannot meet, but the move is largely priced.

Where our number looks wrong.The in-season rating sees Michigan State's two early blowouts of Toledo and Eastern Michigan and still credits a roughly average offense; in three power conference games the Spartans have scored 10, 13 and 3. It also cannot see that Illinois lost its leading rusher and changed defensive coordinators, which cut the other way, so the net is close to the market.

• Illinois offense punted four times and Houser threw a late interception in 24-17 loss to Purdue
• Michigan State 31-3 loss at Wisconsin, offense stalled under two quarterback rotation

Spread.The market makes Illinois a small road favorite at minus 2.5 after opening between Michigan State plus 1.5 and plus 3.5 across books, so the number has settled near a field goal. The strongest case for that price is a team in better form: Illinois went 9-4 last year and averages 30.6 points, while Michigan State is a first-year-coach team scoring 18.2 a game after a 3-31 loss at Wisconsin. The news leans the same way. Starting quarterback Cam Fancher left the Wisconsin game with a knee injury and is listed questionable, with Alessio Milivojevic the backup, and Michigan State's running back Edwards is also questionable. Against that, Illinois has a long list of questionable receivers and tight ends and just lost at home to Purdue, so the road side is not clean. The price already reflects most of it. I would lean Illinois at minus 2.5 but not bet it, because the quarterback question is unresolved.

Total.The market total sits at 47.5 to 48.5 after opening at 50 to 51.5, so sharp money already pushed it down. The case for the over is Illinois scoring 30.6 a game and a modest wind of about 14 mph not being a major factor. The case for the under is Michigan State's offense, which scored 3 points at Wisconsin and 13 against Nebraska, with its starting quarterback questionable and a backup likely if he sits, plus a long list of Illinois skill players questionable. Michigan State's defense allows 23.2 a game, so Illinois alone can reach 30. I lean under only at 47.5 or better, since much of the drop is already in the price.

• Fancher knee injury leaves Michigan State quarterback status uncertain