DJ's agent strongly denies drug suspension

• By Jay Coffin
• May 15, 2012 2:34 PM ET

Dustin Johnson’s management team has ended speculation as to when Johnson will return, but speculation will remain as to why he was gone in the first place.

Johnson last played the WGC-Cadillac Championship in mid-March. His agent David Winkle told CBSSports.com that Johnson will make his return from a back injury later this month at the Memorial.

The injury, which Johnson’s team says was aggravated from lifting a jet ski at his South Florida home, has led to much speculation – the loudest suggesting he was serving a PGA Tour drug suspension, which Winkle disputes. The Tour does not release fines or suspensions for recreational drug violations.

“I have heard everything from A to Z,” Winkle told CBSSports.com on Tuesday. “Dustin is not serving a drug suspension. I will make it clear – he has been injured. He is playing golf again, he is very rusty but chomping at the bit to get back out there.”

Johnson was originally scheduled to play in the Byron Nelson Classic this week but took his name off the commitment sheet before the Friday deadline.

Assuming Johnson is healthy, this still is an important summer for him. Following the Memorial he will play in Memphis, then the U.S. Open. Johnson is ranked No. 21 in U.S. Ryder Cup points.

“Obviously, I can’t wait to get back out and compete,” Johnson said in a news release. “I came into this year with some big goals, including making our Ryder Cup team, so I’ve got some serious ground to make up this summer.”