GREEN BAY, Wis. -- Rookies don’t usually dominate the one-on-one pass-rushing/pass-blocking drill the way Kenny Clark and Jason Spriggs have in their first training camp.

But the Green Bay Packers’ top-two draft picks’ ability to hold up in the drill bodes well for the kind of impact they could have if called upon.

Clark, the Packers’ first-round draft pick, sports the best record among all defensive players in the drill. Rushing mostly from the nose tackle or three-technique defensive tackle position, Clark’s strength, leverage and athleticism has been on display.

Not necessarily viewed as a pass-rusher coming out of UCLA -- he had seven sacks in three seasons (although six came last year) -- the 27th overall pick appears determined to show he can get to the quarterback.

“He’s a very serious young man,” Packers defensive line coach Mike Trgovac said. “When you talk to him, he’s always looking you in the eye and he takes in everything you say, which sometimes when you get younger players that’s not always the case. He takes his job very seriously for a young guy. When you say something, he’s writing it down. I do like that about him. He likes to have fun but doesn’t joke around a whole lot. He understands and I think he knows he has a responsibility being the first-round pick. I like what I’ve seen from him so far.”

In a drill heavily weighted in the offense’s favor, Clark is one of only three defenders with a winning record. It’s not just his raw record that is impressive. In a “block rating” developed by statistical guru Luke Stanke, who has assisted us in the past in analyzing the one-on-one-results, Clark ranks as the highest defender and the second-highest player overall behind undefeated left tackle David Bakhtiari.

On the flip side, fellow rookie Kyler Fackrell has struggled in the drill so far. The third-round pick is winless rushing from his outside linebacker position, but he did post a sack in Friday’s preseason opener against the Browns.

Spriggs is part of a tackle trio (along with Bakhtiari and Bryan Bulaga) that has dominated in the one-on-ones so far in camp. His only two losses came at the hands of Nick Perry and Lerentee McCray. Spriggs, the 48th overall pick in the draft, is third in Stanke’s “block rating” behind Bakhtiari and Clark.

Still, offensive line coach James Campen said it would be a mistake to read too much into the offense’s 125-67 record in the drill, including a combined 39-2 record by the top three tackles (Bakhtiari, Bulaga and Spriggs).

“I think that a lot of times in the one-on-one drill, you’re trying something, the defender’s trying something,” Campen said. “So I think sometimes when coaches ask them to put themselves in hard positions, you know to try to find, we like to use the word recover even though you don’t want to be in recovery mode all the time. But I think really a lot of times in that drill, it’s a really competitive drill. At the same time, you don’t get to see what we’re telling both sides. So sometimes it can appear to be very weighted.”