The midfielder joins the reigning MLS Cup winners after a standout 2024 campaign.
Harris scored 43 USL Championship goals as a LouCity forward.
Davila was a finalist for the 2024 USL Championship Player of the Year.
Louisville hopes a majority of a record-setting team can avenge postseason disappointment with a championship in 2025.
Cruz led Louisville to multiple club records this season.
If Louisville City FC can win at home for the 18th time this season on Saturday, it will earn its 10th consecutive conference final berth.
A sellout crowd saw the United States Women's National Team win its first match in Louisville in 20 years.
Louisville is one victory away from clinching homefield advantage throughout the playoffs.
Goodrum has been one of the USL Championship's most productive attackers since entering the league in 2020.
The Louisville City Football Club left the heat and disappointment of a weekend loss in Tampa and went straight into the heat at Pittsburgh, in a stadium where the locker room air conditioning was out.