Scouts' Eye: Johnny Knox emerging

Johnny Knox caught 45 passes for 527 yards and five touchdowns as a rookie in 2009. Jerry Lai/US Presswire

Scouts Inc. takes a look at major training camp storylines every week. Here are some thoughts about this weekend's slate of preseason games:

The Bears host Oakland on Saturday. It will be interesting to see how Chicago's wide receivers fare against CB Nnamdi Asomugha if he plays an extended stretch.