As a free agent blitzball player, Ropp is located at the travel agency along the Mi'ihen Highroad and can be recruited for 200 gil per match.

Where can I recruit Nimrook?

Nimrook is located in the Airship corridor, and can be recruited for 100 gil per match.

Where is Linna FFX?

Linna is found sitting on the stair at the beginning of the frozen road which leads to Macalania Temple. She moves to the temple's doors after the player acquires the airship.