The Cubs' rookies took 'dress' up literally

On Thursday afternoon, Cubs catcher David Ross tweeted out a picture of a few of his rookie teammates. Nothing out of the ordinary, except they weren't exactly wearing their game gear. 

#rookiedressup pic.twitter.com/cEBRbeV2CD

- David Ross (@D_Ross3) October 1, 2015

Ah yes, the annual end-of-the-year rookie dress-up. How else would we know that Kris Bryant is a "Frozen" fan?

Princess Elsa pic.twitter.com/V6j7FaQHaD

- Dexter Fowler (@DexterFowler) October 1, 2015

Kyle Schwarber approached the day with a sense of inevitability: "I knew it was coming," he told MLB.com's Carrie Muskat. "I just didn't know when. I'm going to wear it with pride."

"It's great," Carl Edwards Jr. said. "I feel welcome here."