Robert Lewandowski
Lewandowski netted 26 goals last season but is far from first choice under Pep GuardiolaGetty Images

Manchester United are in the market to sign a striker and have made Robert Lewandowski their top target for the summer, according to the Daily Telegraph.

The striker made 45 starts for Bayern Munich in all competitions, scoring 26 goals and assisting eight in the process. However, Bayern are unlikely to sell to United considering they have already allowed Bastian Schweinsteiger to make the move to Manchester, leaving United to also keep an eye out for alternative options.

The Polish international will guarantee goals up top for United, who struggled in that department last season. The striker completed his much talked about move to Bayern last season from Borussia Dortmund from where he left on a Bosman after refusing to sign an extension on his contract.

The Red Devils have allowed Robin van Persie and Radamel Falcao to leave the club this season and are left with only Wayne Rooney as the senior-most striker in the squad, with James Wilson as back-up. The Dutch striker travelled to Istanbul to complete a move to Fenerbahce this summer, after the Turkish club confirmed they have already held talks with United.

The report states that Edinson Cavani is also a plausible option and a deal could be struck with Paris Saint-Germain in a swap deal with Angel di Maria, who is disillusioned with life at Manchester.

The Guardian reports that PSG are willing to make a £47m ($73m) bid for the winger should United be interested in selling him, but Di Maria is reportedly keen on making a move back to Spain. However, Real are in no mood to take him back, thus narrowing down his options to stay in Manchester, or consider transferring to Ligue 1.

Meanwhile, the Red Devils have completed four transfer deals this summer, with the last three coming within two days of each other. Matteo Darmian, Schweinsteiger and Morgan Schneiderlin have all been confirmed and are on their way to the United States to begin their pre-season tour, to prepare for the Premier League campaign, which starts on 7 August.