Bryce Harper and Mac From It’s Always Sunny in Philadelphia (Rob McElhenney) Strike Up Friendship

Updated: 9:17 p.m.

If you're a fan of Chase Utley, "Always Sunny" or both, you know all about the Mac's love affair with the former Phillies second baseman.

Back in 2013, Utley responded to Mac's hilarious/heartwarmingly pathetic letter.

Last summer, they kicked it like a couple of bros.

View this post on Instagram

#mcm Lookin good Mac. you've come a long way @robmcelhenney

A post shared by CHASE UTLEY (@chaseutley) on Jun 11, 2018 at 12:20pm PDT

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And now Mac (Rob McElhenney) has made a new friend.

You sure can call me Bryce. I bet this will be a real ‘grand slam' of a friendship. Let's have a catch sometime this summer at the Bank! #PhillyLoaded https://t.co/QN9ZcBMhIZ— Bryce Harper (@bryceharper3) March 11, 2019

So cute.

He'd love to get another superstar in on the fun as well.

Deal. Hey @MikeTrout you want in on this? I know I can't throw as fast as you but I think you would be impressed with my speed. I like your hair. These are all the things we can talk about and more. See you in 2020! https://t.co/oqJlmdS7BJ— Rob McElhenney (@RMcElhenney) March 12, 2019

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