Eric Wynalda -- a former soccer star for the U.S. Men's National Team -- has been named in a battery report involving a teenager ... but we're hearing he's calling BS on the claims.
Per a Vegas police report, obtained by TMZ, Wynalda -- who was coaching his son's club team in a recent tournament -- allegedly exchanged words with a player on the other team ... who claimed to cops that Wynalda called him a "bitch," insulted his mom and more.
FIGHT BREAKS OUT TMZ.