The host Thorns have announced a sellout crowd of more than 21,000 for the NWSL match.
Experienced midfielder-defender might start with first unit against the New York Red Bulls in an MLS Eastern Conference showdown Sunday.
Both players practiced "full-out" Friday and scheduled to travel with MLS's Eastern Conference leaders for Sunday match.
With 10 days left in the regular season, the semifinalists are set: Spirit, Seattle Reign, FC Kansas City, Chicago Red Stars.
TV and live streams for the top European soccer leagues, including Tottenham Hotspur vs. Everton on NBC.
Cavaliers are ranked No. 2 in the men's and women's polls. Georgetown men are third.
The 18-year-old midfielder from Bethesda's Walter Johnson High School began his loan from Arsenal with a Scottish Cup start.
Leading scorer Crystal Dunn and the Spirit will visit defending champion FC Kansas City on Thursday night.
Julian Green scored for Bayern Munich II, Geoff Cameron converted winning penalty kick for Stoke and Lynden Gooch made his Sunderland first-team debut.
Miguel Aguilar, Kofi Opare and Conor Doyle score in CONCACAF group play at RFK Stadium.