Uruguayan midfielder Francisco Usucar has left Adelaide United after being told his place in the A-League side couldn't be guaranteed.The 22-year-old will play in Ecuador after a mutual agreement with coach John Kosmina to part with Adelaide."I had a meeting with Kossie and the coaching staff and we spoke about where I sat for this season and they said if they have the full squad available that they didn't know if I'd be in it," Usucar said in a statement."I respect that because he (Kosmina) is the coach but I have to worry about my future and my career, so when an offer came from Ecuador which was good for me, I made the decision to go."Usucar joined Adelaide in January last year and played 34 games for the Reds.