Sporting Kansas City has traded midfielder Kevin Oliveira and defender Tyler Pasher to Atlanta United FC for forward Kenwyne Jones and goalkeeper Alexander Tambakis.
Sporting KC also sent its second-round pick in next year's draft to Atlanta while getting back that club's fourth-round selection in the 2021 draft.
The deal was struck Sunday during Major League Soccer's half-day trade window.
The 21-year-old Oliveira and the 25-year-old Pasher were developmental players who spent most of last season with Swope Park Rangers, the USL affiliate of Sporting KC. Jones is a longtime Trinidad and Tobago national team member while Tambakis was the first signing in Atlanta United history.
In other moves:
— FC Dallas traded 24-year-old defender Walker Zimmerman to Major League Soccer expansion club Los Angeles Football Club in exchange for $500,000 in allocation money and the No. 1 position in the MLS Allocation Ranking.
Zimmerman appeared in 52 games over the past two seasons, scoring five goals. He was Dallas' leader in minutes on the 2016 team that won the Supporters' Shield.
Zimmerman debuted with the U.S. national team earlier this year.
LAFC also received FC Dallas' No. 11 ranking in the MLS Allocation Ranking. And in another deal, it acquired an international player slot for next season from Atlanta United for a fourth-round draft pick.
— The Portland Timbers traded 27-year-old forward Darren Mattocks to D.C. United for a 2018 international roster slot.
— New York City FC traded 32-year-old defender Frederic Brilliant to D.C. United for $75,000 in general allocation money and a 2018 international roster spot.