Concerns about Yasiel Puig's approach to the game on the field may not end up having as big an impact on his career as news that the Dodgers are concerned about how much weight he put on during the offseason. Puig is only 23 years old. If he's struggling with fitness at this age, will it become a more serious concern as he ages? That question seems to be part of the reason the Dodgers are paying special attention to Puig's weight after he weighed in at 251 pounds, up 26 from the end of the 2013 season.