![](https://develop.motherjones.com/wp-content/uploads/2018/01/blog_federer_australian_open_2018.jpg?w=976)
Yan Lerval/AFLO via ZUMA
Twenty grand slam titles and he’s only 36! This Federer kid could end up winning 50 by the time he retires.
Yan Lerval/AFLO via ZUMA
Twenty grand slam titles and he’s only 36! This Federer kid could end up winning 50 by the time he retires.
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