Man United among the clubs weighing up a swoop for Sporting Lisbon striker Viktor Gyokeres – with European sides on red alert after discovering the 26-year-old’s cut-price fee

Viktor Gyokeres is set to be the subject of a mad dash for his signature after it emerged the Sporting Lisbon striker could be available for under £70million next summer.

The Swede hit a hat-trick against Manchester City on Tuesday and he now has 66 goals in 67 Sporting matches.

New Manchester United boss Ruben Amorim, the outgoing Sporting boss, quashed talk of Gyokeres leaving in January. But United may move for him in the summer, with Arsenal and Chelsea also interested.

Gyokeres, 26, has an £84m release clause in his contract but Sporting are believed to be expecting bids from £60m.

Asked whether he was interested in bringing Gyokeres to United, Amorim said on Tuesday night: ‘No, no, no. I cannot be funny with that in this moment. 

The 26-year-old scored a hat-trick in Sporting shock 4-1 win over Manchester City on Tuesday night

‘It was tough for me to leave, if I start joking about that with Gyokeres, I’ll have problems. This is my city, this is my country, I will respect.

‘Viktor has to stay until the end of the season and then his life is going, maybe, somewhere else.’

Gyokeres was not asked about a possible move to United but said of Amorim: ‘We will miss him a lot, of course.

‘We achieved a lot together and we will miss him and the other members of the staff, but they are leaving and we have to move on and face the next challenge we have.’