Two sources told The Trentonian on Wednesday that Dellin Betances, one of the organization’s more heralded prospects, has been sent back to Trenton from Triple-A Scranton/Wilkes-Barre and is active. 

Betances, Baseball America’s third-ranked prospect in the organization, has fallen almost completely off the tracks this season. He’s walked 69 hitters in 74 2/3 innings and has gotten touched for a 3-5 record and a 6.39 ERA in 16 starts. 

Seen across the scouting world as a reliever, the Yankees have yet to ask him to work out of the bullpen.

The demotion is a far fall for Betances, who looked like a new pitcher after ligament reinforcement surgery on his right elbow after the 2009 season. He outdueled current Toronto Blue Jay Kyle Drabek in Game 1 of Trenton’s eventual sweep of the New Hampshire Fisher Cats in Game 1 of the 2010 Eastern League Division Series and earned the promotion to Triple-A in August of last year. 

He made his major league debut on Sept. 22 of last year, when he walked four hitters in 2/3 of an inning in New York’s loss to Tampa Bay. 

In other Thunder news, reliever Preston Claiborne has been promoted to Triple-A Scranton. He was 2-2 with a 2.22 ERA with Trenton and hadn’t allowed an earned run since May 22, a span of 15 appearances.

The Thunder also announced yesterday that right-hander Adam Miller has been released from the organization entirely. Righty reliever Mike Dubee, son of Phillies pitching coach Rich Dubee, was released earlier this week.