Tight end Chris Cooley was an observer during Wednesday’s minicamp practice. When the tight ends went through their positional drills, Cooley helped tight ends coach Sean McVay instruct others.

Coach Mike Shanahan said later that Cooley was nursing a minor hamstring strain. Shanahan said Cooley could have practiced if the team was in the regular season.

Offensive coordinator Kyle Shanahan echoed sentiments that yoga has helped right tackle Jammal Brown gain more flexibility. “He’s always trying to touch his toes and show us how flexible he is,” Shanahan chuckled. Tackle Trent Williams said Brown is moving much better and joked that his fellow tackle is wearing wide receiver cleats now.

Brown showed some good mobility when he caught a pass that was batted at the line by Barry Cofield. Brown scooped up the ball and juked a couple of off guard defensive linemen before the play was blown dead.

After he was relegated to special teams duty for most of last season’s practices because of a balky knee, Brandon Banks has practiced fully as both a receiver and return man. The third-year pro appeared to make cuts with ease. Shanahan said Brandon Banks will have to help the Redskins both as a wideout and return man to make the team this season.

Defensive coordinator Jim Haslett and defensive backs coach Raheem Morris both raved about rookie cornerback Chase Minnifield, and the UVA product continued his strong play on Wednesday.

A day after making a 57-yard field goal in the Redskins’ practice bubble, Graham Gano missed a 54-yard attempt wide left with a breeze blowing.

Second-year wideout Aldrick Robinson, who has had a solid offseason , hauled in a touchdown pass from Kirk Cousins while covered by DeAngelo Hall. He later caught another touchdown pass, and Cousins, Banks and several other receivers rushed up and did the old “fun bunch” group leaping high five.

Hall couldn’t hold on for an interception while covering Santana Moss, and immediately dropped to the ground to pound out 10 push-ups, as the defensive backs have been doing when they miss picks.

Hall later rebounded, picking off a Griffin pass intended for Fred Davis. Hall lateraled the ball to linebacker Ryan Kerrigan as linemen closed in on him. Griffin then playfully jumped on Kerrigan’s back once the play ended.

Rookie Josh LeRibeus showed some growing pains as he learns to play center. LeRibeus, who played guard at SMU, had two bad snaps on Wednesday and one on Tuesday while working with the second team.

Sav Rocca, who ended the year with a sprained ankle on his left (planting foot), appeared to be fine and was booming punts Wednesday. It marked the first time that Rocca had punted in practices open to the media.

Shanahan said the Redskins will have a running and lifting session on Thursday, and will watch some film. But he will give the players time off from practice as reward for their hard work.

More on the Redskins:

All things Robert Griffin III

Cooley: Don’t ask too much of Griffin

Chemistry class: Griffin and his receivers