Much like fellow rookie Jack Elliott, Marcus Epps was not supposed to be a major player for the Union this season. However, after spending time with Bethlehem Steel FC and showcasing his talent in practice, he eventually worked his way up to the first-team, where he became a valuable bench player.
Epps joined the Union when the team selected him in the second round of the 2017 MLS SuperDraft with the 25th overall pick. He joined the Union for the team's preseason, and officially signed on February 6.
After getting game minutes with the Union during the preseason, Epps started out the season up in Bethlehem.