http://www.cbssports.com/nfl/draft/...-gets-passing-grade-but-others-steal-the-show
Just found this, sorry if it has already been posted:
Written by Rob Rang.
While the hype centered around the "skill position" players Wednesday, the big winner may have been safety,
T.J. McDonald, who drew praise from Kansas City Chiefs' scout and defensive backs' coach Drae Harris, who, along with Pittsburgh Steelers' defensive backs coach Carnell Lake, put USC's cornerbacks and safety through extended drills.
"[McDonald] is an explosive athlete who is quickly able to take what we were asking him to do and apply it to the field. He's so explosive out of his cuts and covers such ground."
McDonald, who measured in at 6-3, 213 pounds, led each of the defensive back drills.
He caught every pass thrown to him, consistently using his height to his advantage by extending far beyond his frame to secure the ball.
The more I read, it appears as if a lot of teams were very interested in T.J., including the Niners.