Real Madrid players celebrate with Karim Benzema, who scored twice against Viktoria Plzen. Photo: Petr David Josek/AP

PLZEN, Czech Republic – Real Madrid took a huge step towards clinching a spot in the Champions League knockout stage on Wednesday with a 5-0 rout of Viktoria Plzen as Karim Benzema scored two of four first-half goals for the Spanish giants.

Benzema opened the scoring in the 20th minute when he beat two defenders, before slipping a shot through the legs of Plzen goalkeeper Ales Hruska.

Casemiro doubled the lead three minutes later when the Brazilian out-jumped his marker and headed home from a corner.

An unmarked Benzema notched his second goal in the 37th minute with a redirected header assisted by Gareth Bale to give Real a 3-0 lead, and Benzema returned the favour minutes later when he flicked on a cross for Bale to sweep home a volley.

Toni Kroos completed the scoring in the 67th minute when he coolly chipped over the keeper after a counter-attack.

With two games remaining in Group G, Real Madrid are in second spot, level on nine points with AS Roma.

Meanwhile, Bayern Munich forward Robert Lewandowski scored once in each half to give his team a 2-0 victory over AEK Athens that put them two points clear at the top of Group E with two matches left.

Lewandowski scored a 31st-minute penalty, and added another in the 72nd with a volley at the far-post as the Bavarians got a much-needed confidence boost ahead of their Bundesliga match against league leaders Borussia Dortmund on Saturday.

Bayern, who struggled in the first half against a gutsy AEK, are on 10 points, with Ajax Amsterdam on eight after drawing 1-1 against Benfica.

The Greeks made the better start, and Vasilis Lampropoulos’ glancing header in the fifth minute sailed just wide of Manuel Neuer’s post.

AEK valiantly stood their ground for 30 minutes, but a 31st-minute penalty for a foul on Lewandowski allowed the striker to score the opener.

Leon Goretzka almost scored for Bayern 10 minutes after the restart, but his point-blank header was pushed over the bar by AEK keeper Vasilis Barkas.

The keeper then denied Lewandowski in a one-on-one as Bayern pressed hard for a second goal that would kill off the game.

They were rewarded in the 72nd minute when Joshua Kimmich whipped in a corner, and Lewandowski was left unmarked to volley in at the far-post after a flick-on.