TURIN, Italy—Five-time champion Novak Djokovic reopened his ATP Finals account and beat Casper Ruud 7–6 (4), 6–2 on Monday. He’s attempting to match Roger Federer’s record of six titles at the elite season-ending event for the top eight players. In the other group match, Andrey Rublev topped 2018 champion Stefanos Tsitsipas 6–4, 6–4. Daniil Medvedev and Alexander Zverev won their group singles on Sunday. After his match, Djokovic was presented with the trophy for finishing the year ranked No. 1, a feat he accomplished for a record seventh time—breaking a tie with childhood idol Pete Sampras. In an on-court interview, Djokovic recounted how he fell in love with tennis watching Sampras when he was “4 or 5 years old” and asked his dad to buy him a racket. “Now I’m here and I’ve won this (trophy) seven times, one more than (Sampras)—incredible,” Djokovic told the crowd in Italian. “The dream …