Death threats probe clouds Colombia preparations for crucial World Cup match against Poland

Midfielder Sanchez received threats on social media after receiving a red card in the third minute of Tuesday's 2-1 loss against Japan

Colombia's Juan Cuadrado and Carlos Sanchez during training at the Kazan Arena on Saturday. Sanchez is suspended for the Group H match against Poland following a red card against Japan in Colombia's opening 2-1 defeat at the World Cup. John Sibley / ReutersShow less

Colombia head into their World Cup clash against Poland in Group H on Sunday under pressure to get a result and with their preparations overshadowed by a police investigation into death threats made to midfielder Carlos Sanchez.

In a grisly echo of the killing of Andres Escobar, who was gunned down after scoring an own goal for Colombia at the 1994 World Cup, Sanchez received threats on social media after receiving a red card in the third minute of Tuesday's 2-1 loss against Japan.

Sanchez was sent off for a deliberate handball after trying to block a shot in the area and will miss the Poland match in Kazan on Sunday.

Jose Pekerman's team closed ranks on Saturday, undertaking a private training session at their ski resort base outside of Kazan and declining to comment on the Colombian police probe and their preparations for Poland, who were upset 2-1 by Senegal in their opener.

Queries remain over the fitness of talisman James Rodriguez, who was used as a 59th-minute substitute against Japan as he recovers from a calf problem.

Argentine Pekerman would prize dearly the option of starting the Golden Boot winner at the 2014 Brazil finals against eighth-ranked Poland, and alongside midfield partner Juan Quintero.

Sanchez's absence may open the door for Mateus Uribe to slot into midfield next to Jefferson Lerma.

After a stunning loss to Senegal, courtesy of a pair of howling errors, Poland might console themselves that they can only get better.

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Poland manager Adam Nawałka has promised changes to a team that has the ability to both score and concede lots of goals.

With Senegal's well-drilled backline keeping Robert Lewandowski subdued, Nawalka will hope for more midfield drive to boost supply to the country's record goal-scorer.

The recall of defensive stalwart Kamil Glik, who missed the Senegal opener with a shoulder injury, would be a huge boost for Poland's hopes of stopping the likes of Rodriguez and front man Radamel Falcao.

There are still doubts about Glik's fitness, however, so Thiago Cionek, his replacement against Senegal, may keep his starting place despite scoring an own goal against the Africans.

Poland, who have never reached the knockout rounds of a World Cup after losing their opening game, will need to shore up their defence in their first competitive match against Colombia if they are to defy their history.

"It will be like a final," said Colombia striker Radamel Falcao.

"Each team will battle hard to keep the ball, and will close down the space for their opponents to operate in."

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