Speaker driver cone repair

I just fired up a pair of speakers with 9" Dynaudio woofers. Sounded fine but when I took off the grill screens in one speaker I found vertical tears on both sides of the center in the woofer surround about 4 to 6 inches long. I believe it is rubber. I have no idea how this came to be. The speakers haven't really been used for about 10 years.

Is this something that can be easily repaired. How?