Bono, the front man of the Irish rock group U2 who was injured in a cycling accident last year, said on Friday his recovery has not been easy and he may never play guitar again.

In a blog on the group's website, the 54-year-old rocker described how he blanked out on impact during the cycling accident in New York's Central Park, which he said he could not blame on anyone but himself.

"Recovery has been more difficult than I thought," he said in the message written from his home in Dublin. "As I write this, it is not clear that I will ever play guitar again. The band have reminded me that neither they nor Western civilization are depending on this."