Aaron Long was named the 2018 MLS defender of the year. (Photo courtesy of MLS)

Red Bulls center back Aaron Long and New York City FC goalkeeper Sean Johnson were among the 27 players called into U.S. men’s national team training camp in Chula Vista, Calif. in Jnauary.

The group will report Jan. 6 to the Chula Vista Elite Athlete Training Center, with one more player to be added prior to the start of camp.

With the dates falling outside of the designated international calendar for national team competitions, the January camp typically consists largely of Major League Soccer-based players who are not in season. This time around, Berhalter has selected a roster exclusively coming from the domestic league. Seventeen MLS clubs are represented, with Columbus Crew SC, LAFC and Toronto FC leading the way with three selections each.

The camp will be the first for Berhalter since being named head coach earlier this month. The U.S. opens the 2019 campaign against Panama on Jan. 27 at State Farm Stadium in Glendale, Ariz. at 8 p.m. ET. The USMNT welcomes regional rival Costa Rica to Avaya Stadium in San Jose, Calif. on Feb. 2 at 3:30 p.m. ET.

“In putting together this domestic-based roster, we started with a number of players who we think can be a core part of the group moving forward. We then looked at players that excelled this year in Major League Soccer, and finally chose players that can play a specific role in our game model,” Berhalter said. “We are very excited to start to implement our ideas about the style of play and the culture we want to develop in the National Team.”

The U.S. roster

GOALKEEPERS (4): Alex Bono (Toronto FC/CAN; 1/0), Sean Johnson (New York City FC; 5/0), Tyler Miller (LAFC; 0/0),
Zack Steffen (Columbus Crew SC; 6/0)

DEFENDERS (10): Reggie Cannon (FC Dallas; 2/0), Greg Garza (FC Cincinnati; 10/0), Justen Glad (Real Salt Lake; 0/0), Nick Lima (San Jose Earthquakes; 0/0), Aaron Long (New York Red Bulls; 2/0), Daniel Lovitz (Montreal Impact/CAN; 0/0), Mark McKenzie (Philadelphia Union; 0/0), Keegan Rosenberry (Colorado Rapids; 0/0), Auston Trusty (Philadelphia Union; 0/0), Walker Zimmerman (LAFC; 4/1)

MIDFIELDERS (10): Kellyn Acosta (Colorado Rapids; 23/2), Paul Arriola (D.C. United; 17/2), Corey Baird (Real Salt Lake; 0/0), Michael Bradley (Toronto FC/CAN; 142/17), Russell Canouse (D.C. United; 0/0), Marky Delgado (Toronto FC/CAN; 6/0), Sebastian Lletget (LA Galaxy; 5/1), Djordje Mihailovic (Chicago Fire; 0/0), Cristian Roldan (Seattle Sounders FC; 5/0), Wil Trapp (Columbus Crew SC; 11/0)

FORWARDS (3): Jeremy Ebobisse (Portland Timbers; 0/0), Christian Ramirez (LAFC; 0/0), Gyasi Zardes (Columbus Crew SC; 40/6)