The hero of the 2014 MLS Cup final and 2-time MLS All star is not certain to stay with Sporting KC past the 2014 season. It was known that negotiations were ongoing during the season but no deal was struck. Currently making around 275,000$, Aurelien Collin would be looking for a big payday being at the height of his career as a 28-year old proven MLS defender.
Being French , hence francophone, and never hiding the fact that he loves the City of Montreal (who doesn't?) would make him an attractive player for Frank Klopas. As the ex-Chicago Fire head coach looks to add more speed and punch to his back-line, Klopas would quickly patch Matteo Ferrari's departure, after not renewing the Italian's contract.
But in MLS, under the current CBA, Collin is not a free agent even if his contract ends with Kansas City. His rights would still belong to the 2014 MLS Cup champion and would not be able to freely sign with another MLS club. Collin can either go play outside of MLS or Peter Vermes would need to trade him (and his rights) to another MLS club.
And why not the Montreal Impact?
It has already begun