Who: Union (0-2-2) at Sporting Kansas City (1-1-2).
When: Sunday, 7 p.m.
TV: Fox Sports 1.
Union on the road: 0-1-1; K.C. at home: 0-0-2.
Goals for: Union, 3; K.C., 3; Goals against: Union, 6; K.C., 4.
Most recent games: Sporting K.C. won at NYC FC, 1-0, last Saturday. The Union lost, 1-0, at Chicago last Sunday.
Corner kicks: Midfielder Zach Pfeffer and Fred are out for the Union while serving red card suspensions. Also out are midfielder Cristian Maidana (knee), forward Conor Casey (sports hernia), and defender Sheanon Williams (hamstring). . . . Forward C.J. Sapong, who has been out since suffering a facial fracture/concussion in the opener, returned to workouts this week, but it would be surprising if he could play against K.C., his former team. . . . K.C. will be without designated player and U.S. national team member Graham Zusi, who is out with a hamstring injury. . . . Defender Ike Opara has been playing at a high level for K.C., with two goals and an MLS-leading 25 interceptions. . . . K.C. is guided by Peter Vermes, the former U.S. national team star from Rutgers and Delran High. - Marc Narducci