Alexander Zverev will undergo eye surgery in the off season to correct deformation in the cornea.

Zverev lost in the semifinals of the Nitto ATP Finals.  He now heads to South America for a series of exhibition matches with Federer.

Alexander Zverev said,  “I’ll only have a few holidays. I’m actually going to go to New York to maybe do a small procedure that I have to do on my eyes. Then I’ll start training.”

Zverev continued, “I’m having trouble with my eyes and have had a lot of problems with my contact lenses this year.” He said that is suffering from a corneal curvature that is getting worse.