Plenty of special-teams hijinks from this afternoon's practice. The first involved coach John Harbaugh taking part in kickoff coverage, which is nothing new considering Harbaugh's background as the former special teams coordinator for the Philadelphia Eagles.
But as Harbaugh raced downfield, he was greeted by linebacker Antwan Barnes and rookie safety Haruki Nakamura, both of whom proceeded to drive Harbaugh back about 20 yards. At one point, someone bellowed to Barnes and Nakamura, "Watch it!" After the play ended, the crowd gave Harbaugh a warm round of applause.
On the ensuing kickoff, quarterbacks Kyle Boller, Troy Smith and rookie Joe Flacco ran as members of the coverage team. A kickoff later, assistant coaches from the Navy football team participated.
Finally, tight ends coach Wade Harman actually dove at kick returner Cory Ross. Harman missed Ross by several inches.
* Linebacker Gary Stills, wide receiver Darnerien McCants and tight end Aaron Walker -- all of whom practiced in the morning -- did not participate in the afternoon session. The reasons for their non-participation were undisclosed.
* Cornerback Samari Rolle and linebacker Nick Greisen celebrated their birthdays today. A large cake was brought out to the field for Rolle, who turned 32, and Greisen, 29.