article_snippet: Adrien Silva of Sporting Lisbon aims to bypass the challenge of Porto's Jackson Martinez on Sunday night .
article_snippet: There seemed to be little danger in a tight contest when the ball bounced towards Arsenal and Manchester United target Jackson Martinez just inside the opposition half on 31 minutes.
article_snippet: The 28-year-old, with Adrien Silva of Sporting Lisbon back to goal, calmly chested his back to goal down before volleying an audacious backheel over Adrien Silva of Sporting Lisbon shoulder and over the retreating green and white wall.
article_snippet: Porto's Algerian forward Yacine Brahimi (right) takes on Sporting Lisbon's William Carvalho .
article_snippet: Manchester United may be wary of Colombian strikers approaching 30, but in an instant Jackson Martinez displayed a vision rarely seen at Old Trafford this season.
article_snippet: Many more performances like this and Barcelona loanee Cristian Tello may well have scouts returning down the well-trodden path to Porto.
article_snippet: The 22-year-old defensive midfielder is also said to be wanted by Manchester United and Arsenal but here The 22-year-old defensive midfielder was often outshone by the crafty Yacine Brahimi.
article_snippet: The Algerian international, replaced by ex-Chelsea flatterer to deceive Ricardo Quaresma, is rumoured to have interested City and on the evidence of this display Manuel Pellegrini may soon be back here.