OAKLAND, Calif. (AP) — The Miami Marlins are working on a trade that would send second baseman and reigning NL batting champion Luis Arraez to the San Diego Padres.

The Marlins said Friday that the deal was pending a review of medical information before it could be finalized and formally announced.

“When a guy like that is taken out of the lineup or potentially traded, you feel it, because he’s such a good kid and one of the leaders in that clubhouse,” manager Skip Schumaker said, “so there’s definitely a shock value.”

Miami changed its lineup minutes before first pitch in Oakland, pulling the 27-year-old Arraez out of the leadoff spot.

Instead, he made his way through the visitor’s dugout at the Coliseum shaking hands and offering hugs and goodbyes with his now-former teammates, coaches and staff.

“Great teammate,” Schumaker said. “So of course, yeah, I think that it’s human nature that there’s an initial shock value when it happens. Again, nothing’s official, but when he gets pulled out of the lineup these guys aren’t dumb, they know what’s going on. I think that the initial shock factor is definitely real and hopefully it goes away in a couple days or tomorrow or whatever it is because we know it’s a business and you’re paid here to come here and win games and be professional.”