San Francisco Frontiers - Crunch time for Real Madrid's Mbappe-Vinicius partnership

The availability of the team's top scorer and best player this season is excellent news for coach Alvaro Arbeloa, but it raises the question of whether Los Blancos lose too much balance when both he and Brazilian winger Vinicius Junior line up in attack together.

That problem is further exacerbated when Jude Bellingham is available too, but the England international is injured and will not feature against Jose Mourinho's side in Lisbon.

All three stars lined up for Madrid in the league phase against Benfica in late January, as Los Blancos fell to a damaging 4-2 defeat that left them facing a play-off round tie against the same opponents.

Mbappe struck twice for Madrid in that match and is the Champions League top marksman with 13 goals.

However Madrid were outplayed and unpicked by Mourinho's side, who secured their own play-off round spot thanks to Ukrainian goalkeeper Anatoliy Trubin's stunning 98th-minute header.

With Mbappe an unused substitute against Real Sociedad on Saturday because of knee discomfort, Vinicius shone as Arbeloa's team ran out comfortable 4-1 winners at the Santiago Bernabeu.

The Brazilian won and converted two penalties in one of his best displays of a mixed campaign.

"Since I've arrived he's had games at a really high level... he's a player who goes beyond the statistics, how he can change a game, condition opponents, the number of players he can attract," enthused Arbeloa.

"He is one of the best in the world, and it is a privilege to coach him."

As Madrid's key attacker against La Real and operating in plenty of space, Vinicius put his stamp on the game.

However he will have to share the star billing with Mbappe at Benfica's Estadio da Luz.

"(Mbappe) is doing very well. Obviously, he has been dealing with these minor issues for quite some time this season," said Arbeloa.

"He is making a great effort every time he steps onto the field, and we have decided not to take risks so that he will be ready to start the match on Tuesday. That will be the case."

- Key question -

Arbeloa has made it clear since replacing Xabi Alonso at the helm in January that he intends to lean on Madrid's star players when they are available.

Alonso's rotation policy and attempt at a meritocracy did not suit some of Madrid's stars and Arbeloa's strategy of keeping them content, from former Madrid coach Carlo Ancelotti's playbook, seems to be working reasonably well so far.

Vinicius's form has risen sharply since Arbeloa's arrival, after a long goal drought impacted Alonso's stint at the helm.

However Ancelotti could not solve the problem either and while the immense quality of Mbappe, Vinicius, Bellingham and co can help Madrid overpower most teams, they can also come undone easily against well-prepared opponents.

Madrid's Galactico gamble between 2000-2006 ended badly, with superstars including Luis Figo, David Beckham and Ronaldo winning limited silverware with the club.

Mbappe and Vinicius have at least said they enjoy playing with each other, and they mesh better now than during the first months after the Frenchman's arrival last season, when they often occupied similar spaces.

Yet with neither particularly fond of pressing or fulfilling defensive duties, it makes life hard for the rest of the team behind them.

After beating Real Sociedad, midfielder Fede Valverde praised the team's grit.

"Everyone worked hard... you could tell that we were defending as a team during the whole game," said Valverde.

Whether they can repeat that against Benfica on Tuesday, and other top opposition down the line, with both Vinicius and Mbappe in the team is the key question yet to be answered.

H.Davis--SFF