World’s 12th ranked golf player Dustin Johnson will not participate in the Masters as he is suffering from a back injury. On Tuesday, he tweeted, “First I have to apologize to the fans and sponsors. With heartfelt regret, I won’t be playing in the Masters due to a tweaked back.”

The 5–time PGA Tour champ went through knee surgery during the off season just after the November’s Presidents Cup and tripped out a slow start in the 2012 season, even though he tied for 4th at Northern Trust Open and was tied for 9th at the WGC-Accenture Match Play just a week later.

His last event was the WGC-Cadillac Championship in Doral where he tied for thirty-fifth on 11th March. David Winkle (his agent) at the Hambric Sports Management, said that first, in January, Dustin Johnson has a had a back pain when he withdrew from the Humana Challenge and for the next 6 weeks, he played through minor pain.

Johnson, at present lives in Southern Florida and he had been taking anti-inflammatory medicines and also going through a therapy. David Winkle said that he would be looking for suggestions from other doctors and expecting it not to be too serious.

Even though he hasn’t played much recently, he remains one of the favourites on the the open golf betting sites.