Dortmund to reject all bids for Lewandowski

Borussia Dortmund have warned potential suitors that Wednesday's four-goal hero Robert Lewandowski is not for sale in the summer.

Lewandowski has been linked with moves to Manchester United and Bayern Munich among other clubs recently and interest in the Polish hitman is sure to grow after the striker scored all of his team's goals in a 4-1 demolition of Real Madrid.

Lewandowski's destruction of Real in Dortmund came in the first leg of their UEFA Champions League semi-final clash with the La Liga outfit and in the process he has become the first player to score four goals at this stage of the competition.

The 24-year-old is out of contract at the end of the 2013/14 season and with no agreement on an extension in sight, it is thought the recently deposed German champions were looking to cash-in on the player this summer to avoid a losing him on a free transfer further down the line.

Just this week Dortmund confirmed new Bundesliga champions Bayern Munich had poached key Dortmund player Mario Gotze for £31.5 million for next season.

"Robert [Lewandowski] has a contract until 2014 and there is no exit clause like with Mario Gotze," Dortmund general manager Hans-Joachim Watzke was quoted by the BBC as saying.

"It is our explicit wish to keep him until 2014. That is why we are saying no to a transfer fee."

Dortmund manager Jurgen Klopp reiterated Watzke's stance: "I do not have the feeling that Robert is on the run and we are not the ones to send him away."

"Let's wait and see what happens next."

Lewandowski was brilliant on the night and always looked one or two steps ahead of Madrid's defence.

Out of the four goals he scored on Wednesday, his best was probably his third goal where he controlled Marcel Schmelzer's wayward effort with one touch before dragging it away from Madrid defender Pepe and then drilling his shot well beyond the reach of goalkeeper Diego Lopez.