Which teams would be most affected by a facial hair policy?

The Miami Marlins and manager Don Mattingly became the latest club to adopt a facial hair policy on Sunday; an idea the former mustache-wearing New York Yankees great will enforce on his new club.

While the Marlins join teams such as the Yankees and Cincinnati Reds in enforcing their players to be clean cut, a number of teams still allow their players to let their whiskers run rampant.

Here are four teams who would be most affected by a "no facial hair" policy.

San Diego Padres

The San Diego Padres roster could feature some sweet facial growth during the 2016 campaign, with Kevin Quackenbush, Andrew Cashner, Derek Norris, and James Shields all sporting fine beards last season. A facial hair policy would be a detriment to the whisker-toting club that also landed frequent beard-wearers Fernando Rodney, Carlos Villanueva, and Alexei Ramirez in the offseason.

Houston Astros

The finest beard in baseball may belong to AL Cy Young winner Dallas Keuchel, so one way to certainly upset the Astros' mojo right out of spring camp would be to enforce a policy keeping their superstar from sporting his wicked facial fuzz.

Evan Gattis wouldn't be too happy either.

Boston Red Sox

Enforcing a facial hair policy in Boston during David Ortiz's final season would be a terrible way to send the slugger off into the sunset. Especially since Big Papi's facial hair game has always always been on point.

Also, a number of Red Sox big-ticket free-agent acquisitions or notable names have also been known to sport bristles on their money-makers, including Craig Kimbrel...

David Price...

Mookie Betts...

and Dustin Pedroia.

Washington Nationals

If Danny Espinosa's outrageous beard isn't enough to put the Nationals out in front of teams who could be most affected by a facial hair policy, then maybe adding Jayson Werth, Bryce Harper, and Anthony Rendon to the mix would be enough.

The amount of facial hair between Espinosa and Werth alone is scary, but Harper and Rendon have been known to let the manes on their faces get lengthy.