Once again, Leeds would not be cowed, and the Yorkshire outfit had the effrontery to level the scores again ten minutes later, after a poor clearance from Van Dijk allowed Patrick Bamford to fire past goalkeeper Alisson.
Due to low infection numbers, several states have already allowed fans to return in the first round of the German Cup, others however stuck to their bans.
"We are working hard for the new season and I think we will have the same group of players that we have now in pre-season," he commented.
Reguilon broke into the Real Madrid first team in the 2018-19 season, making 22 appearances and moving ahead of the Brazilian left back Marcelo in the pecking order.
The country is undergoing an uncertain weather condition, which may render the fields to be unsafe.
"We have to improve in order to be able to compete in the league with guarantees," added Dutchman.
The Seagulls kept pressing, however, and were back on level terms ten minutes into the second half when Leandro Trossard's effort squeezed past the unconvincing Kepa Arrizabalaga in the Chelsea goal.
Suarez was not included in the squad for the game and the first question Koeman had to field from Catalan TV network, TV3 was about the striker as the Uruguayan continues to train apart from the rest of the squad ahead of a possible transfer.
"There was kind of this confusion between the indoor and outdoor record - it's kind of merged. I already had the world record but I wanted to clear everything up and be the best outdoor," said the Swede, who had taken 13 attempts at 6.15m in the season before the night.
The two sides went into the game with a point separating them; with Al-Nassr in second place with four points needing a win to keep them at arm's length from third-placed Sepahan.
Tour rookie Zhao also collected five points from two draws and one win. However, the 17-year-old lost one more frame than Zhou in total.