William Carvalho
Carvalho scouted by both Arsenal and United. (Reuters) Reuters

Sporting Lisbon midfielder William Carvalho has suggested that he may move to Manchester United or Real Madrid at the end of the season, despite reports recently claiming that Arsenal are set to sign him.

After spending the latest two seasons on loan from Sporting, the Portuguese giants called Carvalho back last summer and the 21-year-old midfielder is proving to be a sensation, being named the best player in the Primera Liga by supporters during October and November.

Despite rejecting a move away during the January transfer window, it appears that Carvalho is likely to move abroad next summer, with Old Trafford and the Santiago Bernabeu his most likely destinations.

Asked about his future after Sporting's 2-1 victory over Braga, Carvalho said: "It could be Manchester United or Real Madrid".

"It's just nice to have a great European club after me, but at the moment I'm just totally focused on Sporting and doing my best until the end of the season. It's nice being praised and to know there are some big clubs interested in me. At the end of the campaign, we will see what happens," he told SkySports.

According to reports in Portugal, David Moyes has sent scouts more than 12 times this season to watch the midfielder, while Arsenal 's Francis Cagigao has also attended a number of Sporting games to monitor Carvalho's development.

United are planning a big clear-out in the summer and with Ryan Gigg's future up in the air, they are considering signing at least one midfielder.

Meanwhile, Arsene Wenger is looking to add a young midfielder to the squad as a long-term successor for Mikel Arteta, who is nearing his mid-thirties.

Carvalho's contract with Sporting expires in 2018 and although he has a £37.5m release clause the Lisbon club may be open to negotiate in the summer, as recent reports claimed that they have already lined up Estoril midfielder Goncalo as his replacement.

Meanwhile, United are reportedly willing to include Nani as part of the deal to get a cut-price deal and outbid Arsenal and Real Madrid for his signature.