Marseille says it reached an agreement with Porto on Monday to transfer Argentine midfielder Lucho Gonzalez back to his Portuguese former club.

Gonzalez, who played for Porto from 2005 to 2009 before joining Marseille, was instrumental as the southern club won the French league and League Cup in 2010.

However, his form has dipped this season, with only two goals scored and no assists in 19 league matches.

Marseille says the move was part of a strategy to trim payroll as Gonzalez earns €400,000 ($525,000) a month.

Gonzalez had already expressed his desire for a transfer last year after he and his family were victims of an armed robbery in his house.