The Colts will be adding draft picks and rookie free agents to the roster in the coming days and they cleared out some new space for new arrivals on Wednesday.
Nkansah spent last season on the Texans practice squad and signed a reserve/future deal with the Colts in January. He saw his only regular season action with the Seahawks in 2018.
Rehkow signed to the practice squad last December and did time in both the AAF and XFL. Tucker spent time with the Eagles and Lions before signing a reserve/future deal with the Colts.