Louis van Gaal
Van Gaal has been disappointed with Radamel Falcao's performances during the seasonReuters

Manchester United's strikers have not been able to find the back of the net, so it comes as no surprise, when one of the hottest strikers in world football, Robert Lewandowski has been rumoured with a move to Old Trafford.

Louis van Gaal had high hopes from Monaco's striker, Radamel Falcao, hence coughed up huge money to bring the Colombian striker on loan to Manchester United during the summer, but the player has proved to be a failure with only four goals from as many as 14 starts.

Not only has the player failed to live up to the expectations of the club, but his injuries seems to have been a major concern as well. Van Gaal had brought him on loan with a view of a permanent deal, but they might have already given up on the idea and might be looking at other options during the summer.

One is not sure if the Polish striker's present club, Bayern Munich would be willing to part ways with the striker, which they only brought last season.

Though, Lewandowski has scored 12 times for the German side, Bayern Munich, he has reportedly failed to settle at the Allianz Arena after signing from Borussia Dortmund. The Poland striker was on top form for Dortmund, as a number of teams were vying for his signature.

He enjoyed a successful stint with Dortmund for four years.

As reported by the Guardian, van Gaal is a huge fan of the striker and could be available for £30m. Will he shell out such money to bring in another striker during the summer?

There are chances that the Dutch manager might be tempted to get the Polish striker, for their other two strikers, Robin van Persie and Wayne Rooney have not looked great and are also past their prime.

Manchester United made a number of signings last season, but they might make some huge buys over the summer once again.

The team might not be looking great as far as their holding midfielder position is concerned, hence, United's boss might also be looking at the chance of buying a relatively experienced player such as Nigel de Jong.

The Dutch midfielder will be a free agent during the summer and van Gaal could jump in the opportunity to sign de Jong.