Porto face Falcao dilemma in Europa League

Porto face a growing Europa League dilemma over their Colombian striker Radamel Falcao as the more goals he scores, the harder it will be for the Portuguese champions to hang on to him at the end of the season.

Falcao, whose price tag seems to go up with every goal, notched a hat-trick as last week's 5-1 quarter-final first leg win over Spartak Moscow virtually guaranteed Porto a place in the last four, provided they avoid disaster in Thursday's return in Russia.