Thomas Muller
Manchester United are plotting a summer move for Thomas MullerGetty

Manchester United are set to make a €100m (£70m, $108m) offer for Bayern Munich midfielder Thomas Muller after having had a €70m (£49m, $76m) bid rejected this summer, according to German publication Sport1.

The Red Devils have been heavily involved in the market this season, making four astute signings thus far in the form of Bastian Schweinsteiger, Morgan Schneiderlin, Memphis Depay and Matteo Darmian.

However, Louis van Gaal is ready to make a bid for Muller to strengthen their options in the squad, with the player capable of playing in any position behind the front three or in attack.

Radamel Falcao and Robin van Persie have both been shown the door in recent weeks and the Dutchman may be looking to bring in one more player who can add balance to the squad.

United have already signed Schweinsteiger from Bayern Munich and will find it very difficult to convince the German outfit to let another of their fan favourites leave the club this summer.

The 25-year-old has reportedly been offered a lucrative five-year contract to join them in England and Ed Woodward has been been tasked with bringing the player to Old Trafford before the window closes.

Muller had a breakthrough season for Bayern last time around, scoring 21 goals and assisting 14 in all competitions and was given an advanced role to encourage his attacking instincts.

Meanwhile, Van Gaal is looking to bring back Javier Hernandez to the squad this summer after the Mexican had a brilliant loan stint at Real Madrid. The striker has only a year left in his current contract but the Dutchman is set to offer him a new lease of life to extend his career at Old Trafford.

The Red Devils are also likely to make a £18m ($28m) bid for Barcelona winger Pedro Rodriguez with Angel Di Maria's future at the club under doubt. The Mirror reports that the Argentine is keen to make his way to Paris Saint Germain, with the Ligue 1 Champions ready to make an offer of £40m ($62m) to close the deal.