Five Things, presented by Keith + Associates Dentistry, is a weekly series on SportingKC.com that highlights the top storylines, players to watch and matchday programming ahead of each game throughout the season.
Sporting Kansas City (2-4-5, 11 points) faces a pivotal and challenging test on Sunday as second-place Seattle Sounders FC (7-1-5, 26 points) visits Children's Mercy Park for a Memorial Day Weekend showdown in the Heartland. Tickets for the Western Conference tilt are on sale at SeatGeek.com with kickoff slated for 5 p.m. CT on FS1, FOX Deportes, Sports Radio 810 WHB, SiriusXM FC and ESPN Deportes KC 1480 AM.