Lewandowski made his name at Borussia Dortmund under Jurgen Klopp with 74 Bundesliga goals in four years at the club.
Manchester United are said to have scouted him on multiple occasions during that time but it was Bayern Munich who secured his signature two years ago.
Lewandowski is unsettled at Bayern and would consider a move to England.
The Poland international is apparently a boyhood Liverpool fan and is keen on a reunion with Klopp at Anfield – when the Reds return to the Champions League.
Lewandowski has found the net 42 times this season, making him one of Europe’s most prolific strikers.
A number of top Champions League sides are said to be tracking him – but Real Madrid are the striker’s dream club.
27-year-old has reportedly accepted that he would have to wait for one of their current stars to leave the Bernabeu.
Lewandowski insists he is completely focused on Euro 2016 ahead of Poland’s clash with some familiar faces in the Germany side tonight (8pm).
“For me, Germany are the favourites for the whole tournament, but anything can happen,” Lewandowski said.
Croatian striker Stipe Perica has left Chelsea and completed a permanent switch to Udinese. The Serie A club confirmed the deal on 15 June, Wednesday.
The 20-year-old came up through the ranks of Croatian club NK Zadar before making his way into their first team in 2012. After spending a year in the senior team, he moved to the west London club on 1 August 2013.
After arriving at Stamford Bridge, Perica was sent out on loan in the same summer transfer window as he joined Dutch outfit NAC Breda on a season-long loan. In August 2014, his loan deal was further extended for one more season before he returned to Chelsea after the end of the 2014/15 campaign.
Perica did not make his way into the Blues’ first team and Jose Mourinho sanctioned another loan move. The striker moved to Udinese on loan last summer and has now completed a permanent switch to Dacia Arena.