Nashville SC has made a big move to help solidify its back line for its upcoming expansion season, acquiring U.S. national team center back Walker Zimmerman from LAFC in exchange for a significant amount of allocation money and a 2020 international spot, according to multiple league sources.



The blockbuster trade gives the expansion side a proven MLS veteran with international experience. Zimmerman has started 51 games over the past two seasons for LAFC since being acquired via a trade with FC Dallas in December 2017. The center back signed a new deal with LAFC last season and made $600,000 in guaranteed compensation last year, according to the MLS Players Association salary release.



The trade is still pending league approval.



Sources tell The Athletic that LAFC will receive at least $950,000 in general allocation money from Nashville in exchange for Zimmerman, an amount that could rise to as much as $1.25 million if Zimmerman reaches certain...