Rory McIlroy admits he will wait until early next week to fully commit to the BMW PGA Championship at Wentworth.
A scan revealed that the back problem McIlroy had at the Players Championship was a recurrence of his injury from earlier this year.
McIlroy said on Monday evening that an MRI scan had revealed "no new injury, rather a low grade response to the rib joint I injured earlier in the year".
"As of now I am still entered into the BMW PGA Championship," said McIlroy, who won the BMW PGA in 2014.
RE-SHUFFLE: RORY BACKS PLANS TO BRING US PGA FORWARD
The world number two will now decide early next week whether he is "in a position to compete" at the European Tour's flagship event taking place in Surrey from May 25 to 28.
McIlroy returned to action last week for the first time after getting married and signing a 10-year equipment deal with TaylorMade, but finished in a share of 35th place and 12 shots behind eventual winner Si Woo Kim.
The Northern Irishman pulled out of the BMW PGA last year after citing fatigue and not wanting to play four weeks in a row.