昨日言い忘れました ジョコビッチ、全豪オープン制覇おめでとう🎉🎈🎊 無敵❣️ストレート勝ち‼️ #ジョコビッチ

@tennisnation @ajafarey @TennisTV Reasonably faster I would say. Most experienced players in the last one year (and I suspect it’s the same for the last 4-5 years) have better ace percentage/unreturned serves than their career average.