LONDON (AP) -- Romanian club Steaua Bucharest revived memories of its glory days in the 1980s by beating European champion Chelsea 1-0 in the first leg of their last-16 match in the Europa League on Thursday.
Steaua, king of Europe itself in 1986 before losing in the 1989 European Cup final to AC Milan, will take a narrow but deserved lead into next week's second leg thanks to Raul Rusescu's 34th-minute penalty in Bucharest.
Goals by Ederson and Ogenyi Onazi -- a stunning solo run from the halfway line -- earned Lazio a 2-0 victory over Stuttgart while Fenerbahce also won away, beating Plzen thanks to Pierre Webo's 81st-minute strike.
Big-spending Russian club Anzhi Makhachkala drew 0-0 with Newcastle and saw recent signing Willian hobble off injured in the other completed early match.
Tottenham hosts Inter Milan in the standout game of the later kickoffs.
Chelsea, which dropped into the Europa League after an unprecedented early exit from the Champions League group stage, was way below its best and the limp loss will pile more pressure on beleaguered interim coach Rafa Benitez -- a figure of hate among many of the club's disgruntled fans this season.
Rusescu's penalty, which came after he was shoved in the back by Ryan Bertrand, was one of the few chances Steaua created. But the home side pressed and hounded Chelsea into mistakes, backed by a record crowd of 55,000 in the National Arena.
"We are disappointed because we conceded a goal with a soft penalty and had one or two chances to score," Benitez said. "This result means we have to win at home and we have to push together."
Steaua, which is 12 points clear in the Romanian league, eliminated Ajax in the last 32.
Lazio has dropped off the pace in Serie A after losing four of its last six matches, but remains dangerous in Europe and was the better team from the start against Stuttgart.
Ederson gave the Italian side the lead in the 21st after Stuttgart twice failed to clear a loose ball, with the forward turning and sending a low shot inside the near post.
Onazi doubled the advantage in the 56th when he picked the ball ball in the center circle, beat one defender and surged into the area before clipping a neat finish past the advancing goalkeeper.
With its domestic campaign resuming this weekend after the winter break, Anzhi lacked match sharpness against Newcastle and barely troubled the visitors' packed defense except for two shots from Samuel Eto'o that were well saved by Rob Elliot.
Newcastle, whose players joined the match officials in wearing leggings and long sleeves in sub-zero temperatures in Moscow, had one great scoring opportunity -- a one-on-one chance that fit-again France playmaker Hatem Ben Arfa failed to take.
Willian, signed from Shakhtar Donetsk last month for a reported 30 million pounds ($45 million), came off with an apparent ankle injury in the 22nd minute.