Some have argued the Derby can have a negative impact on players' swings, but Mattingly isn't one of those people.
"You watch these guys take BP, they launch them all the time," Mattingly said. "I think some guys are better than other guys at it."
As of the most recent update, Puig leads all NL outfielders in fan voting. He's looking to become only the second Dodgers outfielder to accomplish that feat, with the last being Darryl Strawberry in 1991.
Fans can cast their votes for starters at MLB.com -- online or on a mobile device -- using the 2014 All-Star Game MLB.com Ballot Sponsored by Experian until Thursday, July 3, at 8:59 p.m. PT. The 2014 All-Star Game will be played at Target Field on Tuesday, July 15 on FOX.
Mattingly cast his own vote Saturday, voicing praise for second baseman Dee Gordon and first baseman Adrian Gonzalez.
"Dee's played really well. He's deserving of consideration -- that's for sure," Mattingly said. "I think Adrian's another guy who's worth consideration. Yasiel, obviously."
Ken Gurnickis a reporter for MLB.com.Michael Lananna is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.