Isan Diaz in action Tuesday for Marlins

Miami Marlins second baseman Isan Diaz is starting in Tuesday's series opener against right-hander Mitch Keller and the Pittsburgh Pirates.

What It Means:

Diaz is working out of the six-hole. Starlin Castro is moving to third base in place of Martin Prado.

numberFire's models expect Diaz to score 8.7 FanDuel points on Tuesday. He's priced at $2,300.