Mykel Williams plays a premium position -- defensive end. He's built like a young Aldon Smith. He's only 20. He's an elite run defender. And as a run defender, he'll get lots of one-on-one matchups ...

Mykel Williams did not have great production in college, but there are high hopes for his first season with the 49ers.

Sports Illustrated's Albert Breer recently opened his mailbag to answer questions from fans, including one asking who he ...