With the victory over Ymer, Djokovic improved his record this season to a stellar 32-1. The only defeat came in a disqualification earlier this month at the US Open, where he hit a ball in frustration which struck the line judge on the neck.
Plzen dominated the second half but Beer Sheva came closer to scoring, as Dutch striker Elton Acolatse hit the post in the 68th minute after a run from the halfway line.
To survive without taking out new loans, the club's new board has refused grants from its former chairman Clemens Tonnies. The millionaire and meat-baron stepped down after two decades as an official following widespread fan protest.
Comments of team leaders indicate growing unrest in a squad that seems to fear their ambitions could be disappointed when trying to repeat some of last season's success after winning the treble.
Italian qualifier Lorenzo Giustino claimed his first tour-level win in a more than six-hour marathon match against Corentin Moutet. It came close to breaking the 16-year-old record for the longest match at Roland Garros.
"We are a bit weak in the question of central defenders: with Gerard (Pique) and (Clement) Lenglet and (Ronald) Araujo, we are a bit short ... it is weak for the season that we are going to play," he admitted.
The game was played behind closed doors at the Menorah Mivtachim Arena in the coastal city of Tel Aviv.
"Our most urgent task is to give the team a sense of achievement again as quickly as possible. I am convinced of the quality of our squad," said Baum.
The three-day festival, that features horse racing, camel racing, archery, Mongolian wrestling and other events, attracted hundreds of participants from around the region.
Following is the Mexico squad:
Real Madrid confirmed with a communique on their official website on Wednesday that the Belgian international has suffered "a muscle injury in his right leg."