After winning his 24th Grand Slam, an adorable video has come to light of Novak Djokovic in his first tennis lesson at age four, with ice cream as a prize.TENNISVideo surfaced of Djokovic in his first training session at age 4After winning his 24th Grand Slam, an adorable video has come to light of Novak Djokovic in his first tennis lesson at age four, with ice cream as a prize.Jennifer BubelEnglish_ASUpdate: Sep 14th, 2023 04:44 EDT0Tagged in:Novak DjokovicTennisTenisUS OpenGrand Slam