Braves spring training questions: Who are these guys?

After a long, transaction-filled winter, the Braves have arrived in Florida to begin preparations for the 2015 season. This was the Braves' 25-man roster for opening day last season, a year in which the club went 79-83. The players who are no longer with the team have been crossed out.

Luis Avilan
Ryan Bucther
David Carpenter
Ryan Doumit
Freddie Freeman
Evan Gattis
David Hale
Aaron Harang
Jason Heyward
Chris Johnson
Craig Kimbrel
Gerald Laird
Tyler Pastornicky
Ramiro Pena
Jordan Schafer
Gus Schlosser
Andrelton Simmons
Julio Teheran
Ian Thomas
Dan Uggla
B.J. (Melvin!) Upton
Justin Upton
Anthony Varvaro
Jordan Walden
Alex Wood

So that's 10 out of 25 still with the team, and guys like Avilan, Pastornicky and Thomas are going to have to play really well in the spring to get a roster spot in Atlanta. Add Mike Minor to the mix this year because he was on the disabled list to open up last season.

So who are all these new guys on the roster?

Is Nick Markakis healthy following neck surgery and ready to show his four-year contract was justified?

Can Shelby Miller emerge as a frontline starter with Roger McDowell in his corner?

Can guys like Alberto Callaspo, Jim Johnson and Jason Grilli bounce back after bad 2014s?

What about all the young prospects that were traded for this offseason -- how impressive are Michael Foltynewicz, Tyrell Jenkins, Manny Banuelos and Arodys Vizcaino?

Is Christian Bethancourt ready to become a big league starter?

How long does it take Jose Peraza to force the Braves' hand at second base? Fredi Gonzalez has already said on the record that the young phenom is going to see a ton of action over the next month.

If you're heading to Disney to catch any games this spring, you'll want to grab a program. It's going to take a while getting familiar with the new guys.