Djokovic beat his fellow Serb Filip Krajinovic 7-6 (7), 6-3, while Nadal won 6-1, 6-3 against Dusan Lajovic, also of Serbia.
Veteran striker Roberto Soldado put Granada ahead after just four minutes with a left-foot volley from Yangel Herrera's cross and the Spanish side's nerves were well and truly calmed six minutes later, when Kenedy doubled their lead.
"Hopefully now I can get some match fitness, get underway and really help the team to win trophies."
"We have made some mistakes in the past. Therefore, we need to make up for financial losses and revitalize our special connection to our fans," Jobst said. Before talking about its future structure, "We need to set up a concept all our fans can identify with."
According to the season's CSL rules, the best four teams from Group A and Group B will compete in the second session.
Elsewhere on Tuesday, Ecuador's LDU Quito secured a 1-0 win away to Peru's Binacional, courtesy of a first-half goal from Matias Zunino.
The idea to add some leadership skills to exiting teenage talents could well pay off if the Swiss coach can create stability.
The pre-season has helped clear up some issues at Real Madrid, with Gareth Bale and Sergio Reguilon in London ahead of their planned moves to Tottenham Hotspur, while Brahim Diaz has joined AC Milan on loan.
"We're going to call on the Brazilian Football Confederation (CBF) to make the Maracana an alternative to the beach," Rio mayor Marcelo Crivella told reporters. "Today the biggest problem Rio faces are the big crowds of people with no masks at the beach."
The first half started slowly, but things quickly changed when Argentina's Gonzalo Martinez sent an indirect free-kick with surgical accuracy onto the head of Hamdallah, the Moroccan making no mistake from six yards to put his team ahead at the half-hour mark.
Dominic Calvert-Lewin hit a hat-trick as Everton also made it two wins from two games with a 5-2 thrashing of newly-promoted West Brom, who have now lost twice and conceded eight times on their return to the top flight.