If you ever need a reminder of just how long Roger Federer’s been around, he practiced with one of his “birthday twins” in London Tuesday.
Chun-Hsin (Jason) Tseng, the 17-year-old No. 1 junior and French Open and Wimbledon junior champion was born Aug. 8 … 2001. That’s 20 years after Federer.
Tseng, who mixed in Futures events with juniors this year, is one of the youngsters invited to London every year to get a taste of the big time.
He also has practiced with Marin Cilic.
And Wednesday, he got to hit with his idol, Kei Nishikori.