Indiana’s secondary has spent the first month of the season piecing itself together, and now it gets its most demanding assignment yet.
The Hoosiers have already had to adjust on the fly after A.J. Harris and Jamari Sharpe were injured in the opener against North Texas.
That pushed younger defensive backs like Jaylen Bell and Ryland Gandy into bigger roles sooner than expected. Sharpe has since returned, Bell has kept earning snaps, and Indiana has opened 4-0 while building depth across the back end.
Saturday night at Rutgers, though, brings a different kind of stress test.
KJ Duff is waiting.
At 6-foot-6 and 225 pounds, Duff has become one of the most productive receivers in college football through four games. He has 29 catches for 550 yards and seven touchdowns, averaging 137.5 receiving yards and nearly 19 yards per reception.
He has scored in every game and has already gone for 196 yards against UMass, 137 against Boston College and 131 against Howard. Even in Rutgers’ loss to then-No.
18 USC, he still managed seven catches for 86 yards and a touchdown.
“KJ Duff is a premier receiver,” Indiana head coach Curt Cignetti said Monday.
That label fits the numbers, but it also fits the way Duff plays. He already topped 1,000 receiving yards last season, and Pro Football Focus credited him with 22 contested catches, the most of any FBS receiver. PFF had him No. 19 on its early 2027 NFL Draft big board in April and also slotted him into the first round of an early mock draft.
His size makes him a problem before the ball even gets there. Duff can go up and get it, and he can turn tight coverage into a completion simply by winning through contact. Indiana’s corners will have to deal with that all night, and Sharpe, at 6-foot-1, is expected to get the main matchup with the future NFL draft pick.
Indiana has also tweaked how it deploys its defensive backs. Cignetti said Monday that Sharpe has moved to the boundary corner spot, which comes with “a few more nuances,” while Bell has stayed at field corner because of his consistency.
“Jaylen has been consistent in all his opportunities to the field,” Cignetti said. “He’s got a good attitude.
He works hard. Smart football player.
It’s important to him.”
Last week gave Indiana its first real look at a Big Ten passing game. Northwestern quarterback Aidan Chiles completed 22 of 29 passes for 293 yards and two touchdowns and helped push the game into the fourth quarter before Indiana won 29-23. The Hoosiers did get to Chiles four times and held Northwestern to a little more than 30 rushing yards, forcing most of the damage through the air.
The Wildcats’ main receiving threat, though, was tight end Luke Dehnicke, who finished with seven catches for 140 yards. Northwestern’s wideouts combined for just 92 yards.
Rutgers presents a tougher perimeter challenge. The Scarlet Knights are averaging 33.8 points per game, with Duff at the center of their passing attack. Quarterback Dylan Lonergan has thrown for 708 yards and seven touchdowns, and backup AJ Surace has added 347 yards and five touchdowns.
Duff has been the engine. He has accounted for more than half of Rutgers’ receiving yards and all but five of its completed passing touchdowns.
And he won’t be the only major receiver Indiana has to worry about down the road. Ohio State’s Jeremiah Smith is still on the schedule a few weeks from now, but that’s for later.
For now, Indiana’s healthy version of its secondary will have to prove it can handle Duff. Kickoff is set for 8 p.m. ET Saturday on BTN.
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