Sascha Zverev complains about the excessive workload during his season as he needs to play at least:
4 slams
9 ATP1000
4 ATP500
Federer doesn’t need to follow this rule.
“Roger is older so he has different rules…”
From one generation to the next… 37-year-old Federer takes on 21-year-old Zverev at the #NittoATPFinals today 🙌 pic.twitter.com/LDe9cf9Lla
— Tennis TV (@TennisTV) November 17, 2018
