Say it ain’t so, an official Federer injury?

Say it ain’t so, an official Federer injury?

291

Federer pulled out of the Qatar Open on Friday due to a bad back. He was scheduled to play Jo-Wilfried Tsonga in a semifinal match.

http://sports.yahoo.com/blogs/busted-racquet/federer-withdraws-qatar-bad-back-140910179.html