Yasiel Puig had a one-on-one batting practice session Thursday afternoon with Dodgers hitting coach Mark McGwire, about an hour before the full team came out to stretch on the field and take BP.

What were they working on?

“Just for him to understand that he’s really not using his legs as much as God gave him,” McGwire said. “There’s a little bit of drift going, and when you drift your hands are a little bit behind you. The major source of strength is built from the ground up. The more stable you are, the shorter you are to the ball, it’s because of using your legs. The emphasis was on him really trying to drive that back knee down to the ground, to allow his hands to be free.

“He’s done it. He’s gotten away from it. It’s reinforcement.”

Puig is hitting .269 with one home run and a .413 slugging percentage in 28 games since he returned from the disabled list with a hamstring injury. In his last 10 games, Puig has seven hits (four singles, three doubles) in 39 at-bats, a .179 average.

“He’s not hitting the ball the way he should be hitting,” McGwire said.

The problem isn’t unique to Puig.

“The first thing I look at with any hitter, if things go awry, is the lower half,” McGwire said. “Usually it’s the lower half that goes. It’s just reassurance that, ‘let’s go back to using your legs’.”