Wander Helder scored twice for Leeds and Aleksander Mitrovic scored twice for the home side, who fought back from 4-1 down to give Leeds a nervy last 25 minutes.
Philippe Coutinho also has a lot to prove after his loan spell at Bayern, while questions remain over what style of play Koeman will look to impose.
The victory ended Huanghai's seven-game losing streak across all competitions while Teda remained winless in all 13 league matches this season, which put coach Wang Baoshan under growing pressure to restore the team's form.
Eight teenage footballers lost their lives late Saturday last week when their driver lost control and plunged the vehicle into the Offin river located in Ghana's Ashanti region. Enditem
Marseille, who are managed by Portuguese Andre Villas-Boas, currently have no Brazilians in their squad. Enditem
Manchester United's first Premier League game of the season ended in a shock 3-1 defeat at home to Crystal Palace on Saturday as Old Trafford old boy, Wilfred Zaha scored twice against his former club.
In the 61st minute, Coronado made a cross into the near post to Welliton who was on the right position to head home for his hat-trick and Sharjah's fifth.
Elsewhere, Osasuna central defender Aridane Hernandez has a muscle injury and will miss their return to their remodeled El Sadar Stadium to take on Levante, while both Eibar and Athletic Club look for their first win of the season in their rescheduled lunchtime kickoff.
Aston Villa also had goalkeeper Emiliano Martinez to thank for a first half penalty save to deny John Lundstrum when the scores were still level.
The HAGOC also started a global appeal for the slogan of volunteers. Applicants can submit their proposal online, by post or on site to the HAGOC office over the next five weeks.
After the victory, Hebei accumulated 21 points to rank fourth in the Suzhou division and secure the last ticket to the championship race, while Wuhan was sixth with 16 points and failed to make the top eight. Enditem