Mouratoglou: I'm feeling so proud, Serena's achievement is extraordinary

Name: Mouratoglou: I'm feeling so proud, Serena's achievement is extraordinary
Uploaded: 2017-01-28T11:22:00.403Z
Duration: 52 s
Description: We spoke to Serena Williams' coach Patrick Mouratoglou after she went clear of Steffi Graf with 23 Grand Slam wins.

We spoke to Serena Williams' coach Patrick Mouratoglou after she went clear of Steffi Graf with 23 Grand Slam wins.

00:00:52

28/01/2017 at 12:14 GMT