De Leon has been scratched from his scheduled start for Triple-A Durham on Sunday, another indication that a call-up is on the way, Marc Topkin of the Tampa Bay Times reports.
It was reported earlier that De Leon was on his way to the big leagues, and this is the first indication from a local beat writer confirming that idea. It sounds as if the Rays still plan to start Erasmo Ramirez on Monday, but the 24-year-old De Leon could be used in long relief. Recently promoted to Triple-A after a forearm issue derailed his start to the season, the righty owns a 4.38 ERA with 16 strikeouts over 12.1 innings across two levels.