Sporting have the option of signing Porro on a permanent deal next year, and the Portuguese giants are said to be determined to keep hold of the Spain international.
Sporting ayaa fursad u haysata inay heshiis joogto ah kula soo saxiixato Porro sanadka soo socda, kooxda reer Portugal ayaa la sheegay inay ka go'an tahay inay sii haysato xiddiga heerka caalami ee dalka Spain.