In their preparation for the San Francisco 49ers, the Washington Redskins have been tasked with finding a way to stop one of the game's more dynamic quarterbacks in Colin Kaepernick.

This season, San Francisco (6-4) has seen their fair share of ups and downs, but Kaepernick is still the same playmaker that he's always been. On the year, he's thrown for 2,359 yards and 14 touchdowns while running for another 322 yards.

"He's doing a nice job running their offense," Redskins defensive coordinator Jim Haslett said. "I think he's growing with the offense. I think he's done a nice job, especially the last couple weeks."

San Francisco enters the game on the heels of two straight victories over the New Orleans Saints and New York Giants. In those games, Kaepernick threw for a combined 403 yards and two scores with 48 yards rushing on 12 carries.

As the season rolls on, Kaepernick only seems to be getting stronger, having thrown just one interception in the last six games while also having a breakout contest of 343 yards and three touchdowns through the air against St. Louis.

Haslett believes it's because the young quarterback is beginning to find himself within the offense

"I think they've given him more things to do," he said. "As you see him grow, he has more things to do in the offense. I think he's done a nice job with everything they've given him."

This season, the Redskins have seen their fair share of mobile quarterbacks, and linebacker Keenan Robinson believes that one in particular has helped prepare them for this game.

"It's just another guy that's versatile and mobile, athletic, can throw, can do everything," Robinson said. "Pretty much like Russell Wilson."

Against the Seattle Seahawks in Week 5, the Redskins struggled to contain Wilson. While he threw for 201 yards and two scores, he also rushed 122 yards and a touchdown.

On that night, Washington wasn't able to contain the quarterback in the pocket. This Sunday, that will be key -- or, as Robinson puts it, the defensive backs will have to cover for an extended period of time.

"He's a guy that we have to make sure that we can keep him in the pocket," Robinson said. "We have to be able to make him throw errant throws or try to force him into bad situations that we can have a better chance at helping out DBs because we don't want to have them covering all day."

To that point, cornerback David Amerson says that it's that type of situation that often leads to big plays and receivers getting behind the coverage.

"You just keep your eyes on your man and not look back at the quarterback because in one split second he can turn up and all of a sudden he got you beat on a route you just covered," he said. "You take your eye off that receiver for one second to take a look back at what's going on and the balls thrown."

Throughout the season, the Redskins defense has been able to draw up plenty of pressure. Tied for 11th in the NFL with 25 sacks, it's an area in which they could gain the upper hand at Levi's Stadium.

This season, San Francisco has given up 32 sacks, tied for the most in the NFL. In three games between Weeks 7-10, Kaepernick was sacked 18 times, including eight against the St. Louis Rams.

As the defense prepares for Sunday's game, Amerson believes that it won't be a secret what's coming to them when Kaepernick takes the field.

"Everybody knows he's a dual-threat and he definitely can extend plays," he said. "Everyone knows he can do the read option. They have certain quarterback runs for him and stuff like that. He puts stress on your defense."

It may be cliché, but the defensive back believes that comes down to playing sound football if they want to find success in their first trip to the 49ers' new stadium.

"You just got to play disciplined," he said. "You got to be aware of that and know the situation and know what's going on. Just play disciplined football."

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