Purdue quarterback Jack Plummer (13) looks for a receiver during the first half of the team's NCAA college football game against TCU in West Lafayette, Ind., Saturday, Sept. 14, 2019. (AP Photo/Michael Conroy)
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Purdue quarterback Elijah Sindelar already has spent two weeks going through the concussion protocol.

He's going to need better results this week to be cleared for Saturday's Big Ten opener against Minnesota. Coach Jeff Brohm indicated Monday that Sindelar suffered a setback late last week that could keep the Boilermakers' starter out for a second straight game.

"We're still doing exactly what the doctors say," Brohm said during his weekly news conference. "I think he's making progress. We'll see how this week goes. Really last week we thought he was making progress Monday, Tuesday, Wednesday, it wasn't until Thursday where some things popped up again, and that's where we had to start the process over."

Sindelar was injured on Purdue's final offensive play in a 42-24 victory over Vanderbilt on Sept. 7.

Brohm acknowledged later Sindelar probably wouldn't have finished that game if the Boilermakers (1-2) had another possession. At the time of the injury, Sindelar led the Football Bowl Subdivision with 932 yards passing and was tied for the national lead in touchdown passes with nine.

Doctors didn't clear Sindelar in time to face TCU the following week — and the difference was noticeable.

Redshirt freshman Jack Plummer made his college debut in the 34-13 loss, going 13 of 29 with 181 yards, one touchdown and two interceptions and will likely start again if Sindelar can't play against the surging Golden Gophers (3-0), who have won five straight and six of seven — a stretch that began with last year's 41-10 rout over the Boilermakers.

But Brohm knows there was plenty of blame to spread around and hasn't lost faith in Plummer.

"I think he's going to be a very good quarterback, and sometimes you have to go through a few struggles to improve," Brohm said. "We have to improve as a team, there's no question about that, and we're going to need to show that this Saturday, and I don't think we've been getting the performance out of everyone that we need in order to win."

Sindelar isn't the only player the Boilermakers hope to get back.

Right guard Matt McCann, Purdue's most experienced lineman, and receiver Jared Sparks both missed the TCU game with ankle injuries. Receiver David Bell hurt his shoulder during the second half against the Horned Frogs and defensive tackle Lorenzo Neal isn't expected back until at least early October as he continues recovering from offseason knee surgery.

Brohm said Sparks and Bell were held out of practice last week and McCann's availability will be determined later this week.

Still, the hope was last week's bye would give Sindelar enough time to be cleared to play heading into this week. Instead, the process restarted and now Brohm must again play the waiting game as he seeks better results regardless of who starts at quarterback.

"While Elijah is our starter, at the same time you have to have more guys ready to compete, and you saw that really in Game 3," Brohm said. "It's not all on Jack, but we lost our starting quarterback, didn't play well on offense. It's important you have two quarterbacks, it's important you have multiple guys at other positions because you never know when they're going to be down, and that's what we've got to build."

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