Who are the under the radar players for the 49ers and Chiefs?

The Kansas City Chiefs come to town this weekend, and while Alex Smith is the big storyline, there is plenty more to learn about each team. I spoke with Joel Thorman over at Arrowhead Pride, and yesterday, we took a look at the skill Colin Kaepernick would take from Alex Smith, and vice versa. Today, we are taking a look at under the radar players on each team.

Chiefs under the radar players

TE Travis Kelce: He is the player I have been using to answer this question all summer but he's not really under-the-radar anymore, is he? Kelce is quickly turning into an excellent tight end. He is the guy on the team who wears his passion on his sleeve. He will celebrate after first downs and touchdowns and bounce around cheering whenever possible. He's also a darn good receiver. He is a large player (6'5, 260 pounds) but he has such deceptive speed. He's one of those guys who doesn't look like he's running fast but then you notice he's out running safeties and cornerbacks. As 49ers fans know with Alex Smith's time in San Francisco, the tight end position will be utilized.

RT Donald Stephenson: The swing tackle last season, Stephenson was supposed to be the Chiefs starting right tackle this year ... until he got suspended. This will be his first game back and we're not quite sure yet if he will be starting for the Chiefs or not. He was probably the Chiefs best lineman before he was suspended so this will be a much-needed boost to the offensive line.

S Husain Abdullah: He was signed last year and the Chiefs extended him this past offseason. He is quietly turning into a solid player for the Chiefs. He will be the safety on the field but he holds many roles from playing a traditional safety to one deep to a linebacker in the Chiefs dime defense. To quote Andy Reid, he's a good football player. There is an argument he has been one of the 2-3 best players on defense for the Chiefs this season.

49ers under the radar players

C Daniel Kilgore: He took over the starting center role for veteran Jonathan Goodwin. His first three games were solid enough, but in Week 4 he struggled against the Eagles. Generally he has actually been the best of the 49ers starting offensive lineman, but he is a guy the Chiefs interior will attack on Sunday. How he holds up could help dictate how much the 49ers run between the tackles as opposed to just going off tackle and to the edge.

NT Ian Williams: The 49ers defensive line has been one of the key strengths to one of the better run defenses in the league. Williams missed most of last season with a broken ankle, but has returned this year, and is playing better than he did to start last season. The 49ers ability to handle the Chiefs run game will be the key for the 49ers defense. Charles can stretch it outside, but if the 49ers can contain the inside lanes, it might ease things up for the edge.

CB Perrish Cox: The 49ers signed Cox to be their dime back and occasional nickel back in 2012. In 2013, the 49ers released him during the middle of the season, then signed him for the playoffs when Carlos Rogers got hurt. He has bounced around, and yet, somehow he has become the 49ers best cornerback through four games. The 49ers generally keep their outside corners on one specific side of the field, as opposed to following specific receivers around. Cox has a pair of interceptions on the season, and has generally been a fairly shutdown corner thus far. I can't explain it. He was talented coming out of college, but never put it together. Maybe he's just figuring things out.