Easter was scheduled to make his third defense of his IBF lightweight title against contender Javier Fortuna on January 20, 2018 in the Barclays Center on the undercard of the Errol Spence Jr. and Lamont Peterson fight. Fortuna came in overweight so it was no longer a defense for Easter Jr. as he would've retained his belt even if Fortuna won the fight. Nonetheless Easter gave a shaky performance as the shorter southpaw Fortuna was able to trouble Easter with his hand-speed and movement, he was even able to rattle Easter multiple times throughout the fight. However Fortuna had a point deducted in the second round due to tactical misconduct. Even though Easter's performance was underwhelming he was able to earn a very controversial split decision from the judges (114-113, 115-112, and 113-114) which resulted in an on pour of boos from the crowd.
On April 17, 2018, Mikey Garcia vacated the IBF light welterweight title, confirming he would drop back to lightweight to defend his WBC title. On April 24, WBC president Sulaiman stated Garcia would participate in a lightweight unification with Easter Jr in the summer. On May 1, it was reported that the fight would likely take place in July or August at the Staples Center in Los Angeles. July 28 was later confirmed as the fight date.