Kershaw signed a few on his way off the main field. The way it works is that there's a main field that's set up right outside the players club house. Players walk out through the club house, onto the main field, and then move around to the other fields. So the best thing to do is find a spot on the railing and just wait it out. Pitchers always finish first and early.
I did not see Puig sign any autographs when I was there but a lot of people had gotten him the year before. He might not be as accommodating now.
Mattingly signs a TON. He's great. It was very rewarding to see your favorite player and hero be so kind to fans. Here's the ticket I got signed. The first Wild Card game in MLB history:
