Top seed Djokovic labored for two hours to win 6-3, 4-6, 6-3 against German qualifier Dominik Koepfer.
Maccabi almost doubled the lead in the 75th minute, but defender Ofir Davidzada missed an easy opportunity, five meters from an empty net.
New Betis coach Manuel Pellegrini made his presence felt as his side defended much better than they did last season in their 1-0 win away to Alaves last week, while Valladolid were slightly unlucky to only draw 1-1 at home with Real Sociedad.
In his 30-minute ruling, SDT chairman John Ohaga explained that KPL CEO Jack Oguda did not exhaust all international conflict resolution mechanisms before taking FKF to the Tribunal.
"We have to improve in order to be able to compete in the league with guarantees," added Dutchman.
"I always try to push him to do things he didn't know he can do. His potential is huge," the Pole said and spoke about sprint duels he has started in training in order to challenge the 25-year-old German international.
Undeterred, the Blues regained the lead in spectacular fashion just two minutes later, when Reece James unleashed a long-range effort that flew into the top corner for his first ever Premier League goal.
"These two tournaments came too close to each other for me this time," she added.
It also looks as if last summer's major signing Luka Jovic could be heading out on loan, with Borja Mayoral instead being given the chance to provide back-up for striker Karim Benzema.
"As we continue to strengthen WADA's governance, the Executive Committee is showing real leadership in ensuring the Agency is equipped to do its job effectively for clean sport around the world," Banka concluded.
Reguilon will cost the Spurs 30 million euros, and according to Spanish sports paper Diario AS, has agreed a deal until the end of June 2025 with Real Madrid reserving the right to buy him back for 40 million euros before the summer of 2022.