A horrible mistake from Valladolid keeper Jordi Masip gifted Real Sociedad a point in their game, which was played in a temperature of around 30 degrees centigrade in Valladolid's Nuevo Zorrilla Stadium.
As the match progressed Leipzig increased the pressure and came close through Hwang and Lukas Klostermann.
Tuesday's stage winner Sam Bennett, who originally finished third, was promoted to second after Peter Sagan was relegated to last and punished for 13 sprint points for swerving from his line and blocking the late surge of Wout van Aert.
Marcelo Bielsa's Leeds United will be fascinating to watch after the master tactician earned promotion last season, although Leeds could suffer from a lack of goals.
3. Important to start well for Eibar and Celta
The fact that those results can be seen as positive shows how far United have fallen since their glory days but the arrival of Donny van de Beek from Ajax should add further depth and control to Solskjaer's midfield, while Mason Greenwood's rapid progress alongside Anthony Martial and Marcos Rashford in attack, means they will be tough to defend against even if doubts remain about United's own back line.
Despite having the majority of the ball, Zall failed to make an impact as Cote d'Ivoire striker Jean Evrard Kouassi and Dong both squandered chances to level the game.
Reigning champions Slovan Bratislava managed to overcome its biggest rival Trnava 2-0, and sit six points behind unbeaten Dunajska Streda with one game in hand.
"I am not satisfied with the first-half performance. We made Jena strong. Nevertheless, after the restart we controlled the proceedings and wrapped up a deserved win," Werder Bremen head coach Florian Kohfeldt said.
It was the first match weekend in the Dutch top-flight league since last season was cancelled at the beginning of March this year due to the COVID-19 outbreak.
Shaanxi failed to level up before the half-time break when Wang Erzhuo's powerful long volley out of the box went wide in the 30th minute.