Jones entered play on Thursday with four hits in his last 22 at-bats, giving him a .203 average for the season, but the Yankees need his production against left-handed pitching to resurface in a hurry.
"People are going to run lefties against us; that's what we're seeing right now," Girardi said. "There's a lot of lefties in our division. He needs to be productive. We need to see what he's done in the past for us."
Jones enjoyed a monster series in Boston back in July, when he crushed four homers and drove in six runs over a three-game span, and Girardi is crossing his fingers that another explosion is around the corner.
"It seems like the last couple of days, he's started swinging the bat a little bit better," Girardi said. "We know what kind of tear he can go on. The last time we were here, it was a huge tear and he was a big part of the reason we had three wins. That's what he's capable of doing."