CHICAGO -- While linebacker Glenn Carson fiddled with his phone on the plane to Big Ten media days, playing Candy Crush, teammate John Urschel played his own game.

And, of course, the offensive guard's smart phone app involved math -- Brain Crunchers: Math workouts. (And, if there was any doubt, the player currently pursuing his second master's degree put the setting on the highest difficulty.) Out of curiosity, Carson and Malcolm Willis decided to try the game out.

It didn't end well.

"I was on expert or whatever he was on, and I got lost in like three seconds," Carson said with a laugh. "And then we put it on easy, and Malcolm and I still couldn't get it down. It was a little embarrassing."

Urschel tested the game out on the media Thursday morning on medium difficulty. Numbers would flash on the screen: Add 20, multiply by seven, subtract eight, divide by three, etc.

"Can I write this down?" asked one flustered reporter.

"No," Urschel said, smiling.

In the end, only two of about six reporters got the right answer. Urschel seemed in his element.

"I'm just like any other kid," Urschel insisted. "If I'm bored on the bus, I'm waiting for something or for class to start, I get on my phone just like everyone else and play my little games. But my games happen to be math games, that's all."

That's not to say this is the kind of math Urschel focuses on. When asked if he's ever seen the movie "Good Will Hunting" and could solve that problem on the blackboard, Urschel hesitated because he couldn't remember the equation in question. But that's the kind of math he enjoys, he said, the kind that doesn't really involve numbers.

"I like the challenge," he said. "You don't get far into math until all of a sudden there are no numbers."

Carson smiled and added that he's sticking to Candy Crush.

Reversing the sanctions: O'Brien and athletic director Dave Joyner were both tight-lipped about any future actions the Nittany Lions might take regarding the sanctions. Both declined to comment about possibly approaching the NCAA in the future, saying they both hoped to focus on the 2013 season.

Other Big Ten players and coaches also refused to comment on Penn State's situation. The closest thing to an actual opinion -- on whether the sanctions should be cut back -- came from Northwestern coach Pat Fitzgerald.

"At the end of the day, I'm for what's best for the student-athletes," he said. "Again, I can't speak for Bill or his program but, obviously, under his leadership and what's transpired, you have to be nothing but impressed. The way that senior class a year ago -- under Coach's leadership and that coaching staff -- came together and fought through that time, it was nothing short of impressive.

"... They do things the right way and you hope that, for the student-athletes that are currently in the locker room, they get the experience that every student-athlete gets."

Back to normal: Last year's Big Ten media days obviously felt a lot different to O'Brien and the Nittany Lions. The issue of the sanctions and just how they would affect the program became interview staples.

Questions on the sanctions still popped up this time around, but they were no longer the focus. And Urschel shared an interesting response when asked if everything seems back to normal now, like when he first arrived on campus.

"I'd say better," he said. "We're blessed to have Coach O'Brien on our coaching staff. We're blessed to have Fitz [Craig Fitzgerald] in the weight room. This is the best football situation I've ever been a part of. We have a great group of coaches."

Injury/player update: Both tailback Zach Zwinak and tight end Kyle Carter are expected to be healthy in time for camp, O'Brien said, although they're on different timetables.

Zwinak injured his wrist in the Blue-White Game and is ahead of schedule but likely will miss some contact drills. Carter, who hurt his wrist last season, is expected to participate in all drills once practice starts Aug. 5.

Bill Belton, who has taken time to focus on his academics, also will return for camp. O'Brien said Belton is not in danger of being academically ineligible. There was still no concrete return date for Tyler Ferguson, either, although O'Brien said he'd be back for camp.

Secondary stepping up: Willis said he has been pleasantly surprised by three young CBs this offseason: Da'Quan Davis, Trevor Williams and Jordan Lucas.

"Those are three guys who have stepped up their game and have gotten a lot better," Willis said. "They've caught on to a lot of things that we do, mentally, and also on the field. Just seeing their body change over the summer -- seeing how much hard work they're putting in and how it's paying off with their physique."

Who's at linebacker?: The projected depth chart obviously has Carson as the starting MLB, with Mike Hull and Nyeem Wartman as the outside players. But O'Brien said the staff has been thinking about possibly plugging in two other players at linebacker -- DB Adrian Amos and safety Stephen Obeng-Agyapong.

That's not to say the two defensive backs will be leaving safety to focus on linebacker, but it's not out of the realm of possiblity they could line up at the position on some plays.

"Again, it all comes down to health," O'Brien said. "Can Obeng play some [weakside] linebacker, things like that? We kind of sit in there and talk about different scenarios, and I know John Butler does it a lot more than I do with the defense."

Change in the ticket policy: Want to buy tickets to the Michigan game on Oct. 12 or the Nebraska game on Nov. 23? Turns out you also will have to purchase the same number of tickets for Eastern Michigan or Kent State games.

Joyner addressed that issue Wednesday, telling reporters the change was made for reasons both related to getting more people into the stadium and increasing finances.

Joyner believed big-screen televisions and the home experience have "a lot to do" with declining attendance, so he said PSU also is hoping to make the Beaver Stadium experience a little better.

"We're really working a lot of ways to increase the fan experience at the stadium and make things really interesting that they can't see at home," he said, adding enhanced wi-fi and "better things" on the Jumbotron are among future changes.