![Filip Krajinovic coach identifies key to causing Roger Federer problems at Australian Open | Tennis | Sport | Express.co.uk Filip Krajinovic coach identifies key to causing Roger Federer problems at Australian Open | Tennis | Sport | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/72/590x/secondary/Janko-Tipsarevic-2271599.webp?r=1579684621249)
Filip Krajinovic coach identifies key to causing Roger Federer problems at Australian Open | Tennis | Sport | Express.co.uk
![Alvaro Merlo on Twitter: "@coachmrozik Filip is getting bigger! Say hi to all the MMS fam, wish the best to all of you coach." Alvaro Merlo on Twitter: "@coachmrozik Filip is getting bigger! Say hi to all the MMS fam, wish the best to all of you coach."](https://pbs.twimg.com/profile_images/1168711892099051522/kuVExY_j.jpg)
Alvaro Merlo on Twitter: "@coachmrozik Filip is getting bigger! Say hi to all the MMS fam, wish the best to all of you coach."
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