Zlatan Ibrahimovic demonstrated his enduring attacking threat Wednesday by steering Paris Saint-Germain into the Champions League quarterfinals with a goal and an assist in a 2-1 victory at Chelsea.

By replicating the first-leg triumph in the French capital last month, PSG eliminated Chelsea for the second successive season in the round of 16 but it is far more damaging for the London club this time.

Languishing in 10th place in the Premier League after a feeble title defense, Chelsea will almost certainly be out of the Champions League next season for the first time since Russian billionaire Roman Abramovich bought the club in 2003.

Although Chelsea conceded in the 16th minute when Ibrahimovic's cross was turned in by Adrien Rabiot, Diego Costa leveled 11 minutes later on his return from injury.

But Costa was forced off on the hour and Chelsea's hopes were deflated.

Ibrahimovic tapped in his 50th Champions League goal seven minutes later after being set up by Angel Di Maria on a sparkling night for the winger.

"They were letting us control the game," said Ibrahimovic, who was sent off here last season. "We are happy at the moment, but still not satisfied."

For the 34-year-old Sweden striker it was a timely goal with his PSG contract expiring at the end of the season while still — like his club — chasing a first Champions League title.

"You ask if he is able to reproduce (his domestic form) in the Champions League and he gave you his answer tonight," PSG coach Laurent Blanc told reporters through a translator. "He was able to keep the two opposition center backs occupied."

This was a dour final Champions League night at Stamford Bridge, which is to be rebuilt from 2017, forcing the 2012 European champions off the site until the next decade.

The team requires a rebuilding job in the transfer market under Jose Mourinho's permanent successor. Winger Eden Hazard booed as he was substituted injured in the second half, having once again failed to match last season's player-of-the-year exploits.

"Chelsea is now in a transition period ... to regain the loss terrain where Chelsea used to be," Hiddink said.

How Chelsea would relish the complete dominance of PSG. Sitting 23 points clear atop its league, the Qatar-owned French champions faced a rare test in west London.

Di Maria, who endured a miserable season at Manchester United before joining PSG last year, was a constant menace on his return to England. The Argentine tried to clip the ball past goalkeeper Thibaut Courtois after six minutes but Branislav Ivanovic cleared.

"He is able to change the tempo of play very quickly because he has excellent vision," Blanc said. "Chelsea never knew where he was but we always knew where we could find him with the ball."

Di Maria was the architect of the opener, releasing Ibrahimovic on the left flank. The forward slid the ball across the face of goal to the far post where Rabiot evaded Ivanovic and slotted in.

But Costa, who removed his protective face mask early on, made PSG regret branding him a "fraud" in a jocular pre-match Twitter video when he leveled in the 27th minute.

Thiago Motta conceded possession around half way line before Pedro Rodriguez laid the ball off to Costa. The Spain striker twisted past Thiago Silva before netting only his second European goal in two seasons at Chelsea.

The 27-year-old Costa had a hard low shot parried by Kevin Trapp before half time and he couldn't beat the goalkeeper again before limping off.

Instead, this was a night for a striker seven years his senior in the twilight of his career but still with the hunger for scoring.

Thiago Motta sent a diagonal pass to Di Maria on the left flank and the advancing winger then squared the ball across the penalty area. Ibrahimovic was primed to receive it, slipping his marker before netting at the far post.

"I don't think it will give him any more confidence," Blanc said. "He has plenty of that as it is."

A fortunate ricochet off the bar and Nicolas Gaitan's follow-up header helped to send Benfica into the quarterfinals of the Champions League on Wednesday with a 2-1 win over Zenit St. Petersburg.

Going into the second leg game 1-0 down against an injury-depleted Benfica, Zenit laid siege to Benfica's goal in the second half of the Round of 16 match. The home side was rewarded for its efforts in the 69th minute when Yuri Zhirkov found space on the left flank to cross for Hulk to head home.

Benfica was angered by the goal, arguing that a free-kick should have been awarded in the build-up when Zhirkov bodychecked Nelson Semedo to win the ball.

But the Portuguese club scored a crucial goal in the 85th minute when Raul Jimenez's curled volley was tipped onto the bar by goalkeeper Yuri Lodygin and fell perfectly for Gaitan's header.

Benfica made it 3-1 on aggregate with the last kick of the game when Talisca hit a half-volley from inside the box in the 96th.

"I was expecting us to win today," Benfica coach Rui Vitoria said. "We played very well, it's a well-deserved victory for us."

The win followed a last-minute victory for Benfica in the first leg in Lisbon, where Jonas scored the only goal in the 92nd-minute. It was also a repeat of a two-leg win over Zenit at the same stage of the competition four years ago.

Zenit coach Andre Villas-Boas was morose in defeat.

"It's a pity for a team that pushed so well and created some great chances that we end up losing this game and the tie," he said. "I think it was a bit unfair what happened in today's game ... It was not our day."

Zenit could have scored more were it not for a brave performance by Benficagoalkeeper Ederson.

Ederson put his body on the line to close down first Igor Smolnikov, who collided with the keeper and left him needing treatment in the 60th, and then later Artem Dzyuba, who hesitated a little too long after storming through the defense in the 81st, allowing the keeper to make the stop.

Dzyuba, Zenit's top goalscorer in Europe this season, had also come close in the seventh minute with a low, hard shot that flashed narrowly wide. The Russian club's record of never having reached the Champions League quarterfinals continues.

While Zenit keeper Lodygin's spectacular one-handed stop of Jimenez's shot backfired when the ball came back off the bar, he had pulled off a similar save in the 72nd with an acrobatic, one-handed dive to stop a looping header from Victor Lindelof that was destined for the top corner.