R.Lewandowski is coming to Munich for a medical examination © EuroFootball.com

The worst-kept secret in the Bundesliga may soon become public. The German media reports that Borussia Dortmund's striker Robert Lewandowski, who has already reached an agreement with Bayern Munich last summer, will soon have to complete one formality. During this weekend, the 25-year-old Polish player will arrive in Munich for a medical examination to ensure that there are no issues with the contract's enforcement in the future. According to the press, both clubs will not wait long and will likely officially announce the transfer. The striker, valued at 39 million euros, will cost Bayern nothing, as his contract with Borussia Dortmund expires in a few months.