“A couple people told me that,” Foster said. “I talked to Grigson over there in Indianapolis. He said it was one of those injuries that people do not come back from. It was one of those things where I said, ‘OK.’ It is what it is and I know how I feel about it.

“I know who I believe in and (Grigson) didn’t have the last say-so. It didn’t piss me off. It’s fine. Part of it maybe was true because the injury was severe and it was one of those things where he said, ‘I don’t think you can come back from that.’ We’ll see.”

Nearly everyone that talks in-depth with Foster about the injury references the career-ended injury Joe Theismann suffered on a sack by Lawrence Taylor in 1985. Foster is trying to pull off something Theismann couldn’t do, continue his career.

“When it happened, after they put it back in place and they took him to the room, my next question was how long will it take me to get back?” he said. “They told me I was going to be down for a while.”

It was eight months before Foster could even run again. He was at Halas Hall on a tryout basis during rookie minicamp in May. He also had a workout for the Tampa Bay Buccaneers for his former Rutgers coach Greg Schiano.

“To feel really good, it’s almost been two years,” Foster said.

9. D.J. Williams might not return to practice until the week of the Sept. 8 opener against the Bengals, so it’s nearly a lock rookie Jon Bostic will be at middle linebacker for the first one or two games of the season. After that, it’s impossible to say if Bostic will hold down the job or if the veteran Williams, who has been out with a right calf injury since July 31, will reclaim the position he held.

Williams is scheduled to earn $1.75 million and that’s big money for a backup linebacker and $500,000 more than strong-side starter James Anderson is set to earn. It’s necessary for all backup linebackers to be active on special teams and that’s a big question for Williams.

“You’d have to look back at that tape,” special teams coordinator Joe DeCamillis said when asked if Williams could play special teams. “We are in the process of going through that. We’ll see what happens. We have to look at the tape and see what he has done exactly.”

10. Nine NFL teams were represented by scouts in the press box. Baltimore, Cincinnati, Cleveland, Indianapolis, Miami, Minnesota, the New York Jets, San Diego and San Francisco were all present. The Ravens, Browns and Vikings have had a scout at all three Bears’ preseason games. This is the first game the Bengals, their Week 1 opponent, has shown up.

10a. The Bears are creating every opportunity possible for Fendi Onobun to make the roster but the tight end seems to be dropping them, literally at times. He was wide open without a defender anywhere near when a pass went off his hands in the first quarter. That wasn’t the only ball that went off his hands in the game and he had the dropped pass in the preseason opener at Carolina. Making matters worse? Onobun was called for holding on one play. You have to think his chances could be dwindling.

10b. The good news is Terrelle Pryor did most of his damage against the Bears defense after the starters were out. The slippery former Ohio State quarterback completed 7 of 9 passes for 93 yards and ran for 37 yards on four carries with a 25-yard touchdown scamper. The Bears struggled most last season against mobile quarterbacks -- Colin Kaepernick, Russell Wilson and Cam Newton. They face Robert Griffin III this season in Week 7.

10c. Middle linebacker Bostic did a fine job of sniffing out a read option play where Pryor kept the ball and was trying to turn the corner. He wound up losing five yards on a tackle by James Anderson but it was Bostic who pinned him down. It was an example of Bostic’s range.

“James came over the top and made the tackle,” Bostic said. “I definitely have to give him credit for that. I made sure he couldn’t go anywhere outside, but like I said, he’s a guy that we know is very mobile. We’ve got to make sure we contain him all the time.”

10d. Adam Podlesh handled all of the punting duties –--just four kicks -- so the “competition” with rookie Tress Way is more or less complete.

10e. The Bears have seven interceptions by seven different players. The Panthers are the only other team with seven picks but only 10 of the 32 teams have played three preseason games to this point.

10f. Tight end Martellus Bennett tried to get ahead of the after the first two preseason games when he was not targeted with a pass. So, he took to his Twitter account to say it was no big deal and he didn’t mind because preseason games are meaningless.

“I listen to the fans,” Bennett said. “I try to be one with the fans. So I got a lot of questions about that. For me, it’s preseason. If I don’t catch any balls in the preseason and I catch 150 in the regular season … preseason, those catches don’t get you extra checks. In the regular season, those catches do. We’ll take it up a notch. We’re not even showing our full hand right now so it’s like a poker game right now. We’ve got an advantage not showing our hands. No one knows what our offense is.”

They’ve probably got a pretty good idea what the Bears are going to run on offense. It’s worth wondering if Bennett’s pass-catching opportunities will be limited a little with rookie fifth-round pick Jordan Mills looking like the starter at right tackle. The Bears might want to keep Bennett in a little more in passing situations to help on that side of the line.

10g. Marc Trestman chose to have the Bears practice inside the Walter Payton Center on Wednesday, something former coach Lovie Smith rarely did. Smith wanted to keep players on natural grass as often as possible and for the most part the team only went indoors during inclement weather.

The team recently had a new field installed inside the facility -- manufactured by UBU Sports. The company has also installed playing surfaces for the Metrodome, Superdome and Paul Brown Stadium.

“There’s a number of reasons,” Trestman said. “I wanted guys to get a chance to see our new surface here. It’s going to be a tool we’re going to be able to use during the season at times when we need to get inside. I thought it would be a good opportunity on a short field on a shorter practice day to just allow them to come inside and see what the organization has done for us to help our football team to get better on the days we need to be inside.”

For those who maintain the Chicago Park District should install an artificial surface at Soldier Field, it’s not up to them. The Bears want to maintain a natural grass surface at the stadium.

10h. Veterans during training camp and preseason are earning $1,700 per week. Rookies collect $925 per week. Regular-season paychecks are not far off for those who make the 53-man roster.

bmbiggs@tribune.com

Twitter @BradBiggs