Dell spent two seasons with Racing as its first general manager.
Racing visits Bay FC as Louisville tries to jump back into a postseason position.
Louisville saw two leads disappear in a disappointing defeat.
Howell moves on to Seattle with nothing but love for Louisville, a city the former Racing captain connected with over a short period of time.
Balcer wants to help Louisville claim its first NWSL playoff spot.
The defender has never missed a match for Racing Louisville FC and will now try to lead it to the playoffs.
The defensive midfielder is now a dominant centerpiece for a team wanting to push for the NWSL playoffs.
Louisville's general manager in Ryan Dell and head coach in Bev Yanez spoke to reporters Tuesday about the bombshell trade.
Balcer ranks third in the NWSL in goals since 2019, while Howell is a former No. 2 overall pick.
The United States Women's National Soccer Team will make its fifth-ever appearance in Louisville at Lynn Family Stadium for a friendly vs. Argentina on Oct. 30.