It's time for summer break in Baltimore.

The Ravens'three-day mandatory minicamp concluded Thursday afternoon, bringing an end to the eight-week offseason program.

"I'd grade it very highly with what the guys have done," Head Coach John Harbaugh said. "We've had tremendous participation and the participation has been 100 percent effort."

Here were some of the news and notes from the final minicamp practice:

• Running back Trent Richardson was sidelined because of a physical ailment. He dealt with a hamstring issue earlier in the offseason program, but Harbaugh did not confirm whether this was the same problem. Nose tackle Brandon Williams didn't practice because his wife was experiencing pre-term contractions. She did not have the baby today, but her and the baby are both doing well. The Williams wanted to thank everyone for their kind thoughts and well wishes.

-  The defense had a very strong week of practice and the group ended with a bang. During a series of red-zone drills, linebacker C.J. Mosley picked off a pass in the end zone and cornerback Sheldon Price followed it up with a pass breakup on the next play. Matt Elam also had a leaping interception in the end zone.

• Safety Anthony Levine came up with a pick-six during pass drills right in front of his young son, who was watching practice. As Levine ran towards the end zone, teammate Lardarius Webb turned to the patio where his son was sitting and shouted, "There goes your daddy!"

-  Webb continues to show nice instincts at safety. He's consistently around the action and has some of the best ball skills in the secondary. He came up with an interception early in practice and Secondary Coach Leslie Frazier was fired up about the play.

• The tight end competition will be fun to watch. Veteran tight end Benjamin Watson showed that he can still run just fine against younger defenders. He got behind the defense for a big catch over the middle and then beat several defensive backs to the end zone for a 65-yard score. Second-year Maxx Williams came up with a nice play with a diving catch in the front corner of the end zone during 11-on-11 drills. Darren Waller also caught a few nice passes over the middle and Dennis Pitta continues to look like his old self.

• Rookie running back Kenneth Dixon was an impressive young player of camp. He has a serious burst once he gets through the line of scrimmage. It's always tough to assess running back play before the pads come on, but Dixon is off to a strong start.

• Defensive tackle Timmy Jernigan is someone who looks poised to take the next step in his career. He constantly found himself in the backfield this week and was a disruptive force against the run and pass.