Bo Bichette had an old friend looking for him last week as the Mets prepared for the Subway Series.

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J.D. Martinez, hired last month by the Mets as a special assistant, found Bichette in the home clubhouse at Citi Field before a game and shared a few thoughts with Bichette on the slumping infielder’s plate approach.

“He talked to me about getting in my legs a little bit more, which I think was probably part of the problem, but I think there was probably a multitude of things,” Bichette said.

By focusing on his lower half, Bichette said he can see the ball better because “you can stay in your legs longer, and I think that I wasn’t doing that all of the time.”