[VIDEO] Chelsea, which has yet to win an EPL game under new manager Avram Grant and was coming off a 1-1 tie at home to Rosenborg in its Champions League opener, won, 2-1, at Valencia, which took a seven-game winning streak into the game.
Unbeaten in its first 11 games of the season, Liverpool lost, 1-0, at home to Marseille, which had won just one of its first nine French league games and replaced Albert Emon as coach with Belgian Eric Gerets earlier in the week.
Chelsea rallied from a goal down after nine minutes to win at Valencia.
Frenchman Florent Malouda provided energy that had been missing from the Blues' midfield in recent weeks and set up the first goal when his cross across the middle was put into the Valencia goal by defender Emiliano Moretti.
Ivorian Didier Drogba won the game in the second half with only his second goal of the season -- he had scored 33 in 2006-07.
Captain John Terry returned to the Chelsea lineup -- wearing a protective mask -- just four days after breaking a bone in his face.
Grant insisted that the attitude has been fine since he replaced Jose Mourinho two weeks ago.
"You saw the attitude in the last two weeks," the Israeli said. "It has been difficult, but it was good. I keep telling you I'm very happy with the attitude. To come back from 1-0, and in the second half we dominated. I'm happy."
[VIDEO] Liverpool manager Rafael Benitez said the Reds' performance against Marseille was one of their worst since he took over in 2004.
"This could be the worst game we have had since I came here, especially at home," the Spaniard said. "It was a bad game."
Tiny Mathieu Valbuena won the game for OM with a second-half goal that was set up by Dutchman Bolo Zenden, who came over from Liverpool during the summer.
"We were not playing well, that was clear," said Benitez. "We weren't doing the right things and we were giving the ball away. We couldn't create any clear chances until the end with some corners and a little bit of pressure, but we really didn't play well."