World No. 1 Novak Djokovic has decided to skip the ATP Cup, per Jelena Medic of Blic. Per @jjmedic89, Novak Djokovic is not playing in the ATP Cup.“Novak is not going to ATP Cup. He is practicing, but he’s decided to skip that competition”, said source close to Djokovic.— Saša Ozmo (@ozmo_sasa) December 25, 2021 Djokovic, a 20-time Grand Slam champion, led Serbia to winning the inaugural ATP Cup in 2020. Djokovic partiicpated at this year’s ATP Cup as well but Serbia failed to defend their title. Following Serbia’s exit at the Davis Cup Finals, Djokovic said he would soon inform public about his decision regarding Australia. “I understand you want some answers on where I start the season, how I start it. I’m really, really tired from this season and this whole year, so I just prefer sticking to the family quality time, rehab mode, then let’s see what the future brings,” Djokovic said after the Davis Cup Finals.”You will be informed. I know what you want. I’m not going to give you an a …