MADRID, March 20 (Xinhua) -- Real Betis overturned a first-leg deficit to reach the Europa League quarterfinals with a 4-0 home win over Panathinaikos on Thursday, advancing 4-1 on aggregate.

Betis, which lost 1-0 in Athens last week, drew level in the tie early on when Cucho Hernandez struck the crossbar with a powerful effort and Aitor Ruibal reacted quickest to convert the rebound.

The Spanish side dominated possession for long spells, with Antony going close before Betis doubled the lead just before halftime in bizarre fashion.

Winger Ezzalzouli appeared to assume he had been caught offside and lashed the ball high into the air in frustration, but play continued. The loose ball eventually fell to Sofyan Amrabat, whose shot from outside the area took a slight deflection and wrong-footed Panathinaikos goalkeeper Alban Lafont.

Betis extended its advantage in the 54th minute when Ruibal turned provider for Hernandez, and Antony added a fourth in the 66th after another strong run down the left by Ezzalzouli.

Celta Vigo also advanced to the last eight with a 2-0 win at Lyon, sealing a 3-1 aggregate victory.

Javi Rueda opened the scoring in the second half before Ferran Jutgla wrapped up the win in stoppage time.

Lyon's task became far more difficult after Moussa Niakhate was sent off in the 19th minute for a high, studs-up challenge. Nicolas Tagliafico was also shown a red card deep into stoppage time. ■